templater: handle SyntaxError when parsing ui.logtemplate
Before, Mercurial would crash with a traceback ending with
SyntaxError: unmatched quotes
if you configured
[ui]
logtemplate = {rev}\n
The SyntaxError is now catched and the string is re-parsed without
requiring quotes.
hg debuginstall
$ hg debuginstall
Checking encoding (ascii)...
Checking installed modules (*mercurial)... (glob)
Checking templates (*mercurial?templates)... (glob)
Checking commit editor...
Checking username...
No problems detected
hg debuginstall with no username
$ HGUSER= hg debuginstall
Checking encoding (ascii)...
Checking installed modules (*mercurial)... (glob)
Checking templates (*mercurial?templates)... (glob)
Checking commit editor...
Checking username...
no username supplied (see "hg help config")
(specify a username in your configuration file)
1 problems detected, please check your install!
[1]