add .git-blame-ignore-revs file and add clang-format commit to it (#2170)

* add .git-blame-ignore-revs file and add clang-format commit to it

* formatting fix follow up from #2158

* update .git-blame-ignore-revs

.git-blame-ignore-revs

@@ -0,0 +1,4 @@
+# ignore global clang-format
+30bf563f4d71ff284b5f42d45f77226200a2e571
+# fic formatting followup from #2158
+a3cb054746beed514679592ffec9378acc9e5d41

include/exiv2/jpgimage.hpp

@@ -314,8 +314,8 @@ class EXIV2API JpegImage : public JpegBase {
  private:
   // Constant data
   static constexpr byte soi_ = 0xd8;  // SOI marker
-  static const byte blank_[];  // Minimal Jpeg image
-};                             // class JpegImage
+  static const byte blank_[];         // Minimal Jpeg image
+};                                    // class JpegImage
 
 //! Helper class to access %Exiv2 files
 class EXIV2API ExvImage : public JpegBase {