Fix CI error. (#530)

* ignore .git folder when doing clang-format

* fix syntax

* add backslashes before quotes

* add path filter for several extensions

Jenkinsfile

@@ -618,9 +618,9 @@ pipeline {
                 stage('Clang Format') {
                     agent{ label rocmnode("nogpu") }
                     environment{
-                        execute_cmd = "find .. -iname \'*.h\' \
-                                -o -iname \'*.hpp\' \
-                                -o -iname \'*.cpp\' \
+                        execute_cmd = "find .. -not -path \'*.git*\' -iname \'*.h\' \
+                                -o -not -path \'*.git*\' -iname \'*.hpp\' \
+                                -o -not -path \'*.git*\' -iname \'*.cpp\' \
                                 -o -iname \'*.h.in\' \
                                 -o -iname \'*.hpp.in\' \
                                 -o -iname \'*.cpp.in\' \