Update git submodules

* Update tools/repohooks from branch 'master'
  to 481b8785fa4229bd66286540ee8309357e381350
  - clang-format: tighten up user facing error messages
    
    If fixes failed to apply, the user most likely needs to do something
    manual to their tree to recover.  Add a short error message rather
    than throw a traceback.
    
    Bug: 140943979
    Test: formatting a tree w/errors showed a nicer message & no traceback
    Change-Id: I591fe3895ea648f757b31ba284c910f727eba0da
    
1 file changed