patch 8.2.4372: filetype detection from file contents is in legacy script

Problem:    Filetype detection from file contents is in legacy script.
Solution:   Use a compiled function for filetype detection.
diff --git a/src/version.c b/src/version.c
index 3edb62d..744ed8d 100644
--- a/src/version.c
+++ b/src/version.c
@@ -751,6 +751,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    4372,
+/**/
     4371,
 /**/
     4370,