patch 8.0.1350: cannot build with +eval and -multi_byte

Problem:    Cannot build with +eval and -multi_byte.
Solution:   Adjust #ifdefs. (John Marriott)  Always include the multi_byte
            feature when an input method feature is enabled.
diff --git a/src/version.c b/src/version.c
index d44289a..066294a 100644
--- a/src/version.c
+++ b/src/version.c
@@ -772,6 +772,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    1350,
+/**/
     1349,
 /**/
     1348,