wsfontload(8): close file descriptors on all exit paths

[Frederic Cambus]

Hi tech@,

Close file descriptors on all exit paths in wsfontload(8).

Comments? OK?

Index: usr.sbin/wsfontload/wsfontload.c
===================================================================
RCS file: /cvs/src/usr.sbin/wsfontload/wsfontload.c,v
retrieving revision 1.18
diff -u -p -r1.18 wsfontload.c
--- usr.sbin/wsfontload/wsfontload.c    17 Jun 2017 19:27:54 -0000      1.18
+++ usr.sbin/wsfontload/wsfontload.c    18 Jun 2017 12:56:22 -0000
@@ -166,6 +166,7 @@ main(int argc, char *argv[])
                        i++;
                } while(res == 0);
 
+               close(wsfd);
                return (0);
        }
 
@@ -245,6 +246,8 @@ main(int argc, char *argv[])
        if (res < 0)
                err(3, "WSDISPLAYIO_LDFONT");
 
+       close(ffd);
+       close(wsfd);
        return (0);
 }