2 files changed, 5 insertions, 8 deletions

diff --git a/lib/libc/gen/strtofflags.3 b/lib/libc/gen/strtofflags.3
index c12551aeec59..f287c172cf73 100644
--- a/lib/libc/gen/strtofflags.3
+++ b/lib/libc/gen/strtofflags.3
@@ -44,7 +44,7 @@
 .Sh SYNOPSIS
 .Fd #include <unistd.h>
 .Ft char *
-.Fn fflagstostr "u_long flags" "char *def"
+.Fn fflagstostr "u_long flags"
 .Ft int
 .Fn strtofflags "char **stringp" "u_long *setp" "u_long *clrp"
 .Sh DESCRIPTION
@@ -52,9 +52,7 @@ The
 .Fn fflagstostr
 function returns a comma separated string of the file flags represented by
 .Fa flags .
-If no flags are set the string
-.Fa def
-is returned instead.
+If no flags are set a zero length string is returned.
 .Pp
 The
 .Fn strtofflags
diff --git a/lib/libc/gen/strtofflags.c b/lib/libc/gen/strtofflags.c
index 2cf6f39c484d..d9d2dc4f37b2 100644
--- a/lib/libc/gen/strtofflags.c
+++ b/lib/libc/gen/strtofflags.c
@@ -76,12 +76,11 @@ static struct {
 /*
  * fflagstostr --
  *	Convert file flags to a comma-separated string.  If no flags
- *	are set, return the default string.
+ *	are set, return the empty string.
  */
 char *
-fflagstostr(flags, def)
+fflagstostr(flags)
 	u_long flags;
-	char *def;
 {
 	static char string[128];
 	char *sp, *dp;
@@ -100,7 +99,7 @@ fflagstostr(flags, def)
 		}
 	}
 	*dp = '\0';
-	return (dp == string && def != NULL ? def : string);
+	return (string);
 }
 
 /*