Adapt media-relay kernel detection to recent Debian format.

media-relay.diff

--- mediaproxy-2.5.2/media-relay	2013-11-06 00:03:30.069952020 +0100
+++ /usr/bin/media-relay	2013-11-06 00:12:24.970318048 +0100
@@ -20,7 +20,8 @@
 
     IP_FORWARD_FILE     = "/proc/sys/net/ipv4/ip_forward"
     CONNTRACK_ACCT_FILE = "/proc/sys/net/netfilter/nf_conntrack_acct"
-    KERNEL_VERSION_FILE = "/proc/sys/kernel/osrelease"
+    OS_RELEASE_FILE = "/proc/sys/kernel/osrelease"
+    KERNEL_VERSION_FILE = "/proc/sys/kernel/version"
 
     name = "media-relay"
     fullname = "MediaProxy Relay"
@@ -50,10 +51,13 @@
         sys.exit(1)
 
     try:
-        major, minor, revision = [int(num) for num in open(KERNEL_VERSION_FILE).read().split(" ", 1)[3].split(".")[:3]]
+        major, minor, revision = [int(num) for num in open(OS_RELEASE_FILE).read().split("-", 1)[0].split(".")[:3]]
     except:
-        log.fatal("Could not determine Linux kernel version")
-        sys.exit(1)
+        try:
+            major, minor, revision = [int(num) for num in open(KERNEL_VERSION_FILE).read().split(" ", 4)[3].split("-", 1)[0].split(".")[:3]]
+        except:
+            log.fatal("Could not determine Linux kernel version")
+            sys.exit(1)
     if (major, minor, revision) < (2, 6, 18):
         log.fatal("A mimimum Linux kernel version of 2.6.18 is required")
         sys.exit(1)