patch for https://github.com/go-gl-legacy/gl

gistfile1.diff

diff --git a/program.go b/program.go
index 4bcd1c1..3905e83 100644
--- a/program.go
+++ b/program.go
@@ -9,6 +9,7 @@ package gl
 //     return glGetUniformBlockIndex(program, uniformBlockName);
 // }
 import "C"
+import "strings"
 import "unsafe"
 
 // Program
@@ -74,7 +75,10 @@ func (program Program) GetInfoLog() string {
 		log := C.malloc(C.size_t(length))
 		defer C.free(log)
 		C.glGetProgramInfoLog(C.GLuint(program), C.GLsizei(length), nil, (*C.GLchar)(log))
-		return C.GoString((*C.char)(log))
+		err := strings.TrimSpace(C.GoString((*C.char)(log)))
+		if err != "No errors." {
+			return err
+		}
 	}
 	return ""
 
diff --git a/shader.go b/shader.go
index cd8514f..09e34a0 100644
--- a/shader.go
+++ b/shader.go
@@ -12,6 +12,7 @@ package gl
 // }
 //
 import "C"
+import "strings"
 import "unsafe"
 
 // Shader
@@ -31,7 +32,10 @@ func (shader Shader) GetInfoLog() string {
 		log := C.malloc(C.size_t(length))
 		defer C.free(log)
 		C.glGetShaderInfoLog(C.GLuint(shader), C.GLsizei(length), nil, (*C.GLchar)(log))
-		return C.GoString((*C.char)(log))
+		err := strings.TrimSpace(C.GoString((*C.char)(log)))
+		if err != "No errors." {
+			return err
+		}
 	}
 	return ""
 }