Disallow short earlygetop option combined with other short options
While "hg commit -qRfoo" can be read as "--quiet --repository foo",
"hg commit -mRfoo" should be "--message Rfoo".
abort: Failed to parse .../t/.hg/hgrcFile contains no section headers.file: .../t/.hg/hgrc, line: 1'invalid\n'