Bugfix: Avoid looping while parsing the children of a tree

Happens very intermittently, readLine keeps returning "\r".

Author: brotherbard

PBGitTree.m

@@ -216,6 +216,9 @@ - (NSArray*) children
 
 	NSString* p = [handle readLine];
 	while (p.length > 0) {
+		if ([p isEqualToString:@"\r"])
+			break;
+
 		BOOL isLeaf = ([p characterAtIndex:p.length - 1] != '/');
 		if (!isLeaf)
 			p = [p substringToIndex:p.length -1];