builtin-help: fallback to GIT_MAN_VIEWER before man

diff --git a/cache-tree.c b/cache-tree.c
index 73cb3407077275f82677839d2c9e794c12833c95..5f8ee87bb1c446341b640c2f978a658d6bfcfcd0 100644 (file)
--- a/cache-tree.c
+++ b/cache-tree.c
@@ -507,7 +507,7 @@ struct cache_tree *cache_tree_read(const char *buffer, unsigned long size)
        return read_one(&buffer, &size);
 }
 
-struct cache_tree *cache_tree_find(struct cache_tree *it, const char *path)
+static struct cache_tree *cache_tree_find(struct cache_tree *it, const char *path)
 {
        while (*path) {
                const char *slash;