export: flush the file pointer between patches

test-clone-failure.t: fix unification oversight Prior to unification, the test contained an 'echo $?' line. This line was removed during unification, but the 'echo 255' line that faked it when FIFO support is absent was not.

keyword: make kwfiles show deleted files configured for expansion

keyword: colorize hg kwfiles output

coding style: fix yield used as a function

check-code: single check for Python keywords used as a function This replaces the specific checks for del/and/or/not/except and additionally checks other Python keywords.

coding style: fix gratuitous whitespace after Python keywords

check-code: check for gratuitous whitespace after Python keywords

i18n-pt_BR: synchronized with 9696954415db

merge with stable