Merge branch 'mh/simplify-cache-tree-find'

* mh/simplify-cache-tree-find:
  cache_tree_find(): use path variable when passing over slashes
  cache_tree_find(): remove early return
  cache_tree_find(): remove redundant check
  cache_tree_find(): fix comment formatting
  cache_tree_find(): find the end of path component using strchrnul()
  cache_tree_find(): remove redundant checks

cache-tree.c

@@ -550,22 +550,19 @@ static struct cache_tree *cache_tree_find(struct cache_tree *it, const char *pat
 		const char *slash;
 		struct cache_tree_sub *sub;
 
-		slash = strchr(path, '/');
-		if (!slash)
-			slash = path + strlen(path);
-		/* between path and slash is the name of the
-		 * subtree to look for.
+		slash = strchrnul(path, '/');
+		/*
+		 * Between path and slash is the name of the subtree
+		 * to look for.
 		 */
 		sub = find_subtree(it, path, slash - path, 0);
 		if (!sub)
 			return NULL;
 		it = sub->cache_tree;
-		if (slash)
-			while (*slash && *slash == '/')
-				slash++;
-		if (!slash || !*slash)
-			return it; /* prefix ended with slashes */
+
 		path = slash;
+		while (*path == '/')
+			path++;
 	}
 	return it;
 }