patch 9.1.0146: v:echospace wrong with invalid value of 'showcmdloc'

Problem:  v:echospace wrong after setting invalid value to 'showcmdloc'.
Solution: Only call comp_col() if value is valid.
          (zeertzjq)

closes: #14119

Signed-off-by: zeertzjq <zeertzjq@outlook.com>
Signed-off-by: Christian Brabandt <cb@256bit.org>

src/version.c

@@ -704,6 +704,8 @@ static char *(features[]) =
 
 static int included_patches[] =
 {   /* Add new patch number below this line */
+/**/
+    146,
 /**/
     145,
 /**/