videomode/edid.c: conditionally print mode details

[Ian Sutton]

Only print details about parsed EDID blocks if -DDIAGNOSTIC, consistent
with the surrounding printf()'s.

Ian

Index: edid.c
===================================================================
RCS file: /cvs/src/sys/dev/videomode/edid.c,v
retrieving revision 1.3
diff -u -p -r1.3 edid.c
--- edid.c      5 Dec 2012 23:20:22 -0000       1.3
+++ edid.c      11 Mar 2017 06:03:25 -0000
@@ -594,8 +594,10 @@ edid_parse(uint8_t *data, struct edid_in
                if (edid->edid_modes[i].dot_clock > max_dotclock)
                        max_dotclock = edid->edid_modes[i].dot_clock;
 
+#ifdef DIAGNOSTIC
        printf("max_dotclock according to supported modes: %d\n",
            max_dotclock);
+#endif
 
        mhz = (max_dotclock + 999) / 1000;