patch 7.4.1152

Problem:    Langmap test fails with normal build.
Solution:   Check for +langmap feature.

src/testdir/test_langmap.vim

@@ -1,5 +1,9 @@
 " tests for 'langmap'
 
+if !has('langmap')
+  finish
+endif
+
 func Test_langmap()
   new
   set langmap=}l,^x,%v

src/version.c

@@ -741,6 +741,8 @@ static char *(features[]) =
 
 static int included_patches[] =
 {   /* Add new patch number below this line */
+/**/
+    1152,
 /**/
     1151,
 /**/