Documentation/rev-list-options.txt: Explain --ancestry-path

diff --git a/abspath.c b/abspath.c
index b88122cbe73ec0c438e2d375fdebd51e5febf9ae..c91a29cb298a3ad792ff8745f3e8e0eb28d71678 100644 (file)
--- a/abspath.c
+++ b/abspath.c
@@ -54,8 +54,9 @@ const char *make_absolute_path(const char *path)
                        if (len + strlen(last_elem) + 2 > PATH_MAX)
                                die ("Too long path name: '%s/%s'",
                                                buf, last_elem);
-                       buf[len] = '/';
-                       strcpy(buf + len + 1, last_elem);
+                       if (len && buf[len-1] != '/')
+                               buf[len++] = '/';
+                       strcpy(buf + len, last_elem);
                        free(last_elem);
                        last_elem = NULL;
                }