sha1_file: guard against invalid loose subdirectory numbers

diff --git a/builtin/prune.c b/builtin/prune.c
index 42633e0c6e672c46852f0590f1941249691f962c..ea208c97f883d0bc0c7c9d78e710db457555393b 100644 (file)
--- a/builtin/prune.c
+++ b/builtin/prune.c
@@ -68,7 +68,7 @@ static int prune_cruft(const char *basename, const char *path, void *data)
        return 0;
 }
 
-static int prune_subdir(int nr, const char *path, void *data)
+static int prune_subdir(unsigned int nr, const char *path, void *data)
 {
        if (!show_only)
                rmdir(path);