patch 8.2.0176: generating os headers does not work for Swedish

Problem:    Generating os headers does not work for Swedish.
Solution:   Set the locale to C. (Christian Brabandt, closes #5258)
diff --git a/src/version.c b/src/version.c
index 0306e47..fbb2ca5 100644
--- a/src/version.c
+++ b/src/version.c
@@ -743,6 +743,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    176,
+/**/
     175,
 /**/
     174,