GitCommitBear.py: Removes double word 'end end'
GitCommitBear.py: Removes double word 'end end'

Removes "end" from double word "end end".

Closes https://github.com/coala/coala-bears/issues/2452

refeed/coala-bears,coala-analyzer/coala-bears,coala-analyzer/coala-bears,refeed/coala-bears,refeed/coala-bears,coala/coala-bears,coala-analyzer/coala-bears,refeed/coala-bears,coala/coala-bears,coala-analyzer/coala-bears,coala/coala-bears,refeed/coala-bears,refeed/coala-bears,refeed/coala-bears,coala-analyzer/coala-bears,coala-analyzer/coala-bears,refeed/coala-bears,coala/coala-bears,refeed/coala-bears,coala-analyzer/coala-bears,coala/coala-bears,refeed/coala-bears,coala/coala-bears,coala/coala-bears,coala/coala-bears,coala/coala-bears,coala-analyzer/coala-bears,refeed/coala-bears,coala/coala-bears,coala/coala-bears,coala/coala-bears,coala-analyzer/coala-bears