patch 8.2.4537: output from linter and language server shows up in git

Problem:    Output from linter and language server shows up in git.
Solution:   Add patterns to .gitignore. (Goc Dundar, closes #9925)
diff --git a/.gitignore b/.gitignore
index 8b28377..72143d9 100644
--- a/.gitignore
+++ b/.gitignore
@@ -96,5 +96,10 @@
 src/runtime
 src/pixmaps
 
-# other possible files build by tools
+# other files possibly created by tools
 src/cscope.out
+
+# Linter/language server files
+/.cache/clangd/
+/.ccls-cache/
+/compile_commands.json
diff --git a/src/version.c b/src/version.c
index 7856aed..6aa798f 100644
--- a/src/version.c
+++ b/src/version.c
@@ -751,6 +751,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    4537,
+/**/
     4536,
 /**/
     4535,