good container graphviz output

example.dot

digraph "" {
	graph [bb="0,0,1990.1,405.6"];
	node [color=black,
		label="\N",
		shape=ellipse
	];
	subgraph cluster_b {
		graph [bb="1075.8,136,1473.8,212.8",
			label="Module: b",
			lheight=0.23,
			lp="1274.8,200.4",
			lwidth=0.80
		];
		"github.com/cosmos/cosmos-sdk/container_test.ModuleB.Provide"		 [height=0.5,
			pos="1274.8,162",
			shape=box,
			width=5.2932];
	}
	subgraph cluster_a {
		graph [bb="546.8,136,944.8,212.8",
			label="Module: a",
			lheight=0.23,
			lp="745.8,200.4",
			lwidth=0.79
		];
		"github.com/cosmos/cosmos-sdk/container_test.ModuleA.Provide"		 [color=lightgrey,
			height=0.5,
			pos="745.8,162",
			shape=box,
			width=5.3039];
	}
	subgraph cluster_runtime {
		graph [bb="811.8,284.8,1225.8,361.6",
			label="Module: runtime",
			lheight=0.23,
			lp="1018.8,349.2",
			lwidth=1.31
		];
		"github.com/cosmos/cosmos-sdk/container_test.ProvideKVStoreKey"		 [height=0.5,
			pos="1018.8,310.8",
			shape=box,
			width=5.5251];
	}
	"github.com/cosmos/cosmos-sdk/container_test.ProvideMsgClientA"	 [height=0.5,
		pos="1477.8,310.8",
		shape=box,
		width=5.4715];
	"github.com/cosmos/cosmos-sdk/container_test.MsgClientA"	 [height=0.5,
		pos="1513.8,238.8",
		width=6.7138];
	"github.com/cosmos/cosmos-sdk/container_test.ProvideMsgClientA" -> "github.com/cosmos/cosmos-sdk/container_test.MsgClientA"	 [pos="e,1504.6,257.21 1486.9,292.63 1490.9,284.68 1495.6,275.17 1500,266.37"];
	"github.com/cosmos/cosmos-sdk/container.ModuleKey"	 [height=0.5,
		pos="1247.8,387.6",
		width=6.1622];
	"github.com/cosmos/cosmos-sdk/container.ModuleKey" -> "github.com/cosmos/cosmos-sdk/container_test.ProvideMsgClientA"	 [pos="e,1423.5,328.92 1300.3,370.08 1334,358.83 1377.9,344.14 1413.7,332.2"];
	"github.com/cosmos/cosmos-sdk/container.ModuleKey" -> "github.com/cosmos/cosmos-sdk/container_test.ProvideKVStoreKey"	 [pos="e,1072.8,328.92 1195.5,370.08 1162,358.83 1118.2,344.14 1082.6,332.2"];
	"github.com/cosmos/cosmos-sdk/container_test.MsgClientA" -> "github.com/cosmos/cosmos-sdk/container_test.ModuleB.Provide"	 [pos="e,1331,180.07 1459,221.18 1423.8,209.88 1377.9,195.14 1340.8,183.2"];
	"github.com/cosmos/cosmos-sdk/container_test.KVStoreKey"	 [height=0.5,
		pos="1009.8,238.8",
		width=6.7879];
	"github.com/cosmos/cosmos-sdk/container_test.ProvideKVStoreKey" -> "github.com/cosmos/cosmos-sdk/container_test.KVStoreKey"	 [pos="e,1012.1,257.21 1016.5,292.63 1015.6,284.93 1014.4,275.77 1013.3,267.22"];
	"github.com/cosmos/cosmos-sdk/container_test.KVStoreKey" -> "github.com/cosmos/cosmos-sdk/container_test.ModuleA.Provide"	 [pos="e,808.07,180.12 949.56,221.28 910.4,209.88 859.12,194.97 817.8,182.95"];
	"github.com/cosmos/cosmos-sdk/container_test.KVStoreKey" -> "github.com/cosmos/cosmos-sdk/container_test.ModuleB.Provide"	 [pos="e,1212.3,180.12 1070.3,221.28 1109.6,209.88 1161,194.97 1202.5,182.95"];
	"github.com/cosmos/cosmos-sdk/container_test.KeeperA"	 [color=lightgrey,
		height=0.5,
		pos="228.8,90",
		width=6.3555];
	"github.com/cosmos/cosmos-sdk/container_test.ModuleA.Provide" -> "github.com/cosmos/cosmos-sdk/container_test.KeeperA"	 [pos="e,341.66,105.72 616.34,143.97 535.31,132.69 431.53,118.23 351.76,107.12"];
	"map[string]github.com/cosmos/cosmos-sdk/container_test.Handler"	 [color=lightgrey,
		comment="one-per-module",
		height=0.5,
		pos="745.8,90",
		width=7.5029];
	"github.com/cosmos/cosmos-sdk/container_test.ModuleA.Provide" -> "map[string]github.com/cosmos/cosmos-sdk/container_test.Handler"	 [pos="e,745.8,108.41 745.8,143.83 745.8,136.13 745.8,126.97 745.8,118.42"];
	"[]github.com/cosmos/cosmos-sdk/container_test.Command"	 [color=lightgrey,
		comment="auto-group",
		height=0.5,
		pos="1274.8,90",
		width=6.6838];
	"github.com/cosmos/cosmos-sdk/container_test.ModuleA.Provide" -> "[]github.com/cosmos/cosmos-sdk/container_test.Command"	 [pos="e,1158.9,105.78 878.26,143.97 961.03,132.71 1067,118.28 1148.6,107.18"];
	"github.com/cosmos/cosmos-sdk/container.OwnModuleKey"	 [color=lightgrey,
		height=0.5,
		pos="506.8,238.8",
		width=6.6836];
	"github.com/cosmos/cosmos-sdk/container.OwnModuleKey" -> "github.com/cosmos/cosmos-sdk/container_test.ModuleA.Provide"	 [pos="e,689.56,180.07 561.63,221.18 596.8,209.88 642.66,195.14 679.82,183.2"];
	"github.com/cosmos/cosmos-sdk/container_test.ModuleB.Provide" -> "map[string]github.com/cosmos/cosmos-sdk/container_test.Handler"	 [pos="e,864.81,106.2 1142.3,143.97 1060.6,132.85 956.23,118.64 875.09,107.6"];
	"github.com/cosmos/cosmos-sdk/container_test.ModuleB.Provide" -> "[]github.com/cosmos/cosmos-sdk/container_test.Command"	 [pos="e,1274.8,108.41 1274.8,143.83 1274.8,136.13 1274.8,126.97 1274.8,118.42"];
	"github.com/cosmos/cosmos-sdk/container_test.KeeperB"	 [height=0.5,
		pos="1761.8,90",
		width=6.3407];
	"github.com/cosmos/cosmos-sdk/container_test.ModuleB.Provide" -> "github.com/cosmos/cosmos-sdk/container_test.KeeperB"	 [pos="e,1654.3,105.9 1396.7,143.97 1472.5,132.77 1569.4,118.44 1644.3,107.37"];
	"github.com/cosmos/cosmos-sdk/container_test.TestLogging"	 [height=0.5,
		pos="1761.8,18",
		shape=box,
		width=4.8989];
	"github.com/cosmos/cosmos-sdk/container_test.KeeperB" -> "github.com/cosmos/cosmos-sdk/container_test.TestLogging"	 [pos="e,1761.8,36.413 1761.8,71.831 1761.8,64.131 1761.8,54.974 1761.8,46.417"];
}

messed_up.dot

digraph  {
	subgraph s7 {
		label="Module: a";
		n8[color="lightgrey",label="github.com/cosmos/cosmos-sdk/container_test.ModuleA.Provide",shape="box"];
		
	}
	subgraph s13 {
		label="Module: b";
		n14[color="black",label="github.com/cosmos/cosmos-sdk/container_test.ModuleB.Provide",shape="box"];
		n17[color="black",label="github.com/cosmos/cosmos-sdk/container_test.ProvideKVStoreKey",shape="box"];
		
	}
	subgraph s4 {
		label="Module: runtime";
		n5[color="lightgrey",label="github.com/cosmos/cosmos-sdk/container_test.ProvideKVStoreKey",shape="box"];
		
	}
	
	n12[color="lightgrey",comment="auto-group",label="[]github.com/cosmos/cosmos-sdk/container_test.Command"];
	n2[color="black",label="github.com/cosmos/cosmos-sdk/container.ModuleKey"];
	n9[color="lightgrey",label="github.com/cosmos/cosmos-sdk/container.OwnModuleKey"];
	n6[color="black",label="github.com/cosmos/cosmos-sdk/container_test.KVStoreKey"];
	n10[color="lightgrey",label="github.com/cosmos/cosmos-sdk/container_test.KeeperA"];
	n15[color="black",label="github.com/cosmos/cosmos-sdk/container_test.KeeperB"];
	n3[color="black",label="github.com/cosmos/cosmos-sdk/container_test.MsgClientA"];
	n1[color="black",label="github.com/cosmos/cosmos-sdk/container_test.ProvideMsgClientA",shape="box"];
	n16[color="black",label="github.com/cosmos/cosmos-sdk/container_test.TestLogging",shape="box"];
	n11[color="lightgrey",comment="one-per-module",label="map[string]github.com/cosmos/cosmos-sdk/container_test.Handler"];
	n2->n1;
	n2->n5;
	n9->n8;
	n6->n8;
	n6->n14;
	n15->n16;
	n8->n10;
	n8->n11;
	n8->n12;
	n14->n15;
	n14->n12;
	n14->n11;
	n3->n14;
	n5->n6;
	n1->n3;
	
}