tests/heredoctest.py

templatekw: make {rev} return wdirrev instead of None

wdirrev/wdirnode identifiers are still experimental, but {node} is mapped to
wdirnode. So {rev} should do the same for consistency.

I'm not sure if templatekw can import scmutil. If not, we should move intrev()
to node module.

import sys

globalvars = {}
lines = sys.stdin.readlines()
while lines:
    l = lines.pop(0)
    if l.startswith('SALT'):
        print(l[:-1])
    elif l.startswith('>>> '):
        snippet = l[4:]
        while lines and lines[0].startswith('... '):
            l = lines.pop(0)
            snippet += l[4:]
        c = compile(snippet, '<heredoc>', 'single')
        try:
            exec(c, globalvars)
        except Exception as inst:
            print(repr(inst))