eol: improve hook failure output
Before, only the first failure was reported:
abort: b.txt should not have CRLF line endings
while now all of them are listed:
abort: end-of-line check failed:
d.txt in a7040e68714f should not have CRLF line endings
b.txt in fbcf9b1025f5 should not have CRLF line endings
As first suggested by Antoine Pitrou <solipsis@pitrou.net>
from hgext import color
# ensure errors aren't buffered
testui = color.colorui()
testui.pushbuffer()
testui.write('buffered\n')
testui.warn('warning\n')
testui.write_err('error\n')
print repr(testui.popbuffer())