worktree: rename is_worktree_locked to worktree_lock_reason

A function prefixed with 'is_' would be expected to return a boolean,
however this function returns a string.

Signed-off-by: Nickolai Belakovski <nbelakovski@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

1 files changed, 1 insertions, 1 deletions

diff --git a/worktree.c b/worktree.c
index b0d0b54..befdbe7 100644
--- a/worktree.c
+++ b/worktree.c
@@ -235,7 +235,7 @@ int is_main_worktree(const struct worktree *wt)
 	return !wt->id;
 }
 
-const char *is_worktree_locked(struct worktree *wt)
+const char *worktree_lock_reason(struct worktree *wt)
 {
 	assert(!is_main_worktree(wt));