patch 9.1.1255: missing test condition for 'pummaxwidth' setting

Problem:  missing test condition for 'pummaxwidth' setting, pummaxwidth
          not effective when width is 32 and height is 10
          (after v9.1.1250)
Solution: add missing comparison condition in pum_width()
          (glepnir)

closes: #16999

Signed-off-by: glepnir <glephunter@gmail.com>
Signed-off-by: Christian Brabandt <cb@256bit.org>
diff --git a/src/version.c b/src/version.c
index e302255..d8e55f9 100644
--- a/src/version.c
+++ b/src/version.c
@@ -705,6 +705,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    1255,
+/**/
     1254,
 /**/
     1253,