compat: make it more clear that evolve need Mercurial >= minversion
The message is more clear when mercurial isn't installed at all.
--- a/hgext3rd/evolve/__init__.py Wed Aug 30 18:35:04 2017 +0200
+++ b/hgext3rd/evolve/__init__.py Tue Aug 29 17:30:07 2017 +0200
@@ -271,7 +271,7 @@
registrar.templatekeyword # new in hg-3.8
except ImportError:
from . import metadata
- raise ImportError('evolve needs version %s or above' %
+ raise ImportError('evolve needs Mercurial version %s or above' %
min(metadata.testedwith.split()))
import mercurial