patch 9.1.0977: filetype: msbuild filetypes are not recognized

Problem:  filetype: msbuild filetypes are not recognized
Solution: detect msbuild files as xml filetype
          (Gustav Eikaas)

closes: #16339

Signed-off-by: GustavEikaas <gustav.eikaas@gmail.com>
Signed-off-by: Christian Brabandt <cb@256bit.org>
diff --git a/src/version.c b/src/version.c
index d4fd17e..4ded78f 100644
--- a/src/version.c
+++ b/src/version.c
@@ -705,6 +705,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    977,
+/**/
     976,
 /**/
     975,