[hackers] [sbase] Audit unlink(1) || FRIGN

[git]

commit 497da9d1ddb596da888b9b21c5bac429555c417c
Author: FRIGN <d...@frign.de>
Date:   Sat Feb 28 20:05:22 2015 +0100

    Audit unlink(1)
    
    One small thing, use argv0 in usage.
    Also, add a blank line in link.c which I forgot earlier.

diff --git a/README b/README
index 5edba2e..ffcc382 100644
--- a/README
+++ b/README
@@ -82,7 +82,7 @@ The following tools are implemented ('*' == finished, '#' == 
UTF-8 support,
 =*  uname           yes                          none
 #*  unexpand        yes                          none
 =*  uniq            yes                          none
-=*  unlink          yes                          none
+=*| unlink          yes                          none
 =*  uudecode        yes                          none
 =*  uuencode        yes                          none
 #*  wc              yes                          none
diff --git a/link.c b/link.c
index 5ef8e11..6af7544 100644
--- a/link.c
+++ b/link.c
@@ -19,6 +19,7 @@ main(int argc, char *argv[])
 
        if (argc != 2)
                usage();
+
        if (link(argv[0], argv[1]) < 0)
                eprintf("link:");
 
diff --git a/unlink.c b/unlink.c
index 077959c..797d18a 100644
--- a/unlink.c
+++ b/unlink.c
@@ -6,7 +6,7 @@
 static void
 usage(void)
 {
-       eprintf("usage: unlink file\n");
+       eprintf("usage: %s file\n", argv0);
 }
 
 int