maint: fix a -Wstrict-overflow build failure with gcc 4.5

* src/ls.c (print_color_indicator): Avoid the warning by
not decrementing the integer.

1 files changed, 1 insertions, 1 deletions

diff --git a/src/ls.c b/src/ls.c
index 96a9c4c97..1c8d0d8e2 100644
--- a/src/ls.c
+++ b/src/ls.c
@@ -4132,7 +4132,7 @@ print_color_indicator (const struct fileinfo *f, bool symlink_target)
     {
       name = f->linkname;
       mode = f->linkmode;
-      linkok = f->linkok - 1;
+      linkok = f->linkok ? 0 : -1;
     }
   else
     {