clang-format: Apply formatting to files with upper-case .H extension

.gitattributes

@@ -52,6 +52,7 @@ coverage.xml.in  tab-indent
 *.cpp            our-c-style
 *.cu             our-c-style
 *.cxx            our-c-style
+*.H              our-c-style
 *.h              our-c-style
 *.hh             our-c-style
 *.hpp            our-c-style

Tests/QtAutogen/SameName/object_upper_ext.H

@@ -7,7 +7,7 @@ class Object_Upper_Ext_H : public QObject
 {
   Q_OBJECT
   Q_SLOT
-  void go(){};
+  void go() {};
 };
 
 #endif