codereview: add clpatch --ignore_hgpatch_errors.   of limited utility but good for creating the metadata   for an AUTHORS/CONTRIBUTORS change even if   the patch doesn't apply cleanly.
codereview: add clpatch --ignore_hgpatch_errors.
  of limited utility but good for creating the metadata
  for an AUTHORS/CONTRIBUTORS change even if
  the patch doesn't apply cleanly.

R=r
http://codereview.appspot.com/154140

dsriram/golang,nightlyone/golang,bdwalton/debian-golang,nightlyone/golang,tv42/old-go,tianon/debian-golang,h8liu/golang,apparentlymart/golang,apparentlymart/golang,tianon/debian-golang,dsriram/golang,h8liu/golang,apparentlymart/golang,ssrl/go,dsriram/golang,gnanderson/go,dsriram/golang,pombredanne/go-deleteme,bdwalton/debian-golang,pombredanne/go-deleteme,gnanderson/go,pombredanne/go-deleteme,h8liu/golang,tv42/old-go,dsriram/golang,bdwalton/debian-golang,tv42/old-go,nightlyone/golang,apparentlymart/golang,bdwalton/debian-golang,tianon/debian-golang,tv42/old-go,apparentlymart/golang,h8liu/golang,dsriram/golang,tv42/old-go,nightlyone/golang,tianon/debian-golang,nightlyone/golang,bdwalton/debian-golang,gnanderson/go,ssrl/go,gnanderson/go,ssrl/go,h8liu/golang,tianon/debian-golang,gnanderson/go,bdwalton/debian-golang,tianon/debian-golang,bdwalton/debian-golang,pombredanne/go-deleteme,dsriram/golang,apparentlymart/golang,tv42/old-go,ssrl/go,h8liu/golang,pombredanne/go-deleteme,tianon/debian-golang,apparentlymart/golang,tv42/old-go,bdwalton/debian-golang,nightlyone/golang,nightlyone/golang,ssrl/go,tianon/debian-golang,gnanderson/go,pombredanne/go-deleteme,ssrl/go,ssrl/go,gnanderson/go,h8liu/golang,pombredanne/go-deleteme