Merge branch 'stable-1.1'

* stable-1.1:
  Allow commit when submodule changes are present
  Ignore submodule on checkout instead of deleting it
  cleanup: Reuse local variable for current DirCacheEntry
  Prepare post v1.1.0.201109071825-rc3 builds
  JGit v1.1.0.201109071825-rc3
  Use commit message best practices for Mylyn Commit template

Change-Id: I6ab9e5cb48c036d2ee2e548f5ec040d93672d8ad
Signed-off-by: Matthias Sohn <matthias.sohn@sap.com>

org.eclipse.jgit/src/org/eclipse/jgit/lib/Repository.java

@@ -597,7 +597,7 @@ public abstract class Repository {
 			return resolveAbbreviation(revstr);
 
 		int dashg = revstr.indexOf("-g");
-		if (4 < revstr.length() && 0 <= dashg
+		if ((dashg + 4) < revstr.length() && 0 <= dashg
 				&& isHex(revstr.charAt(dashg + 2))
 				&& isHex(revstr.charAt(dashg + 3))
 				&& isAllHex(revstr, dashg + 4)) {