maint: Use logical rather than bitwise operators on bools

This is because bitwise operators are:
- confusing and inconsistent in a boolean context
- non short circuiting
- brittle in C89 where bool can be an int (so > 1)

1 files changed, 3 insertions, 3 deletions

diff --git a/src/md5sum.c b/src/md5sum.c
index 06a46bbce..e004c5e91 100644
--- a/src/md5sum.c
+++ b/src/md5sum.c
@@ -661,21 +661,21 @@ main (int argc, char **argv)
       usage (EXIT_FAILURE);
     }
 
-  if (status_only & !do_check)
+  if (status_only && !do_check)
     {
       error (0, 0,
        _("the --status option is meaningful only when verifying checksums"));
       usage (EXIT_FAILURE);
     }
 
-  if (warn & !do_check)
+  if (warn && !do_check)
     {
       error (0, 0,
        _("the --warn option is meaningful only when verifying checksums"));
       usage (EXIT_FAILURE);
     }
 
-  if (quiet & !do_check)
+  if (quiet && !do_check)
     {
       error (0, 0,
        _("the --quiet option is meaningful only when verifying checksums"));