test-https: glob error messages more so we pass on Python 2.7.9

Python 2.7.9 cleans up how it stringifies SSL errors, so we have to look only
for the important bit (certificate verify failed) rather than looking for
specific ssl module goop (which is now unstable).

tests/test-https.t

@@ -121,7 +121,7 b" Apple's OpenSSL. This trick do not work "
   $ DISABLEOSXDUMMYCERT=
 #if osx
   $ hg clone https://localhost:$HGPORT/ copy-pull
-  abort: error: *:SSL3_GET_SERVER_CERTIFICATE:certificate verify failed (glob)
+  abort: error: *certificate verify failed* (glob)
   [255]
 
   $ DISABLEOSXDUMMYCERT="--config=web.cacerts="
@@ -205,7 +205,7 b' cacert mismatch'
   searching for changes
   no changes found
   $ hg -R copy-pull pull --config web.cacerts=pub-other.pem
-  abort: error: *:SSL3_GET_SERVER_CERTIFICATE:certificate verify failed (glob)
+  abort: error: *certificate verify failed* (glob)
   [255]
   $ hg -R copy-pull pull --config web.cacerts=pub-other.pem --insecure
   warning: localhost certificate with fingerprint 91:4f:1a:ff:87:24:9c:09:b6:85:9b:88:b1:90:6d:30:75:64:91:ca not verified (check hostfingerprints or web.cacerts config setting)
@@ -218,7 +218,7 b" Test server cert which isn't valid yet"
   $ hg -R test serve -p $HGPORT1 -d --pid-file=hg1.pid --certificate=server-not-yet.pem
   $ cat hg1.pid >> $DAEMON_PIDS
   $ hg -R copy-pull pull --config web.cacerts=pub-not-yet.pem https://localhost:$HGPORT1/
-  abort: error: *:SSL3_GET_SERVER_CERTIFICATE:certificate verify failed (glob)
+  abort: error: *certificate verify failed* (glob)
   [255]
 
 Test server cert which no longer is valid
@@ -226,7 +226,7 b' Test server cert which no longer is vali'
   $ hg -R test serve -p $HGPORT2 -d --pid-file=hg2.pid --certificate=server-expired.pem
   $ cat hg2.pid >> $DAEMON_PIDS
   $ hg -R copy-pull pull --config web.cacerts=pub-expired.pem https://localhost:$HGPORT2/
-  abort: error: *:SSL3_GET_SERVER_CERTIFICATE:certificate verify failed (glob)
+  abort: error: *certificate verify failed* (glob)
   [255]
 
 Fingerprints
@@ -286,8 +286,8 b' Test https with cacert and fingerprint t'
 Test https with cert problems through proxy
 
   $ http_proxy=http://localhost:$HGPORT1/ hg -R copy-pull pull --config web.cacerts=pub-other.pem
-  abort: error: *:SSL3_GET_SERVER_CERTIFICATE:certificate verify failed (glob)
+  abort: error: *certificate verify failed* (glob)
   [255]
   $ http_proxy=http://localhost:$HGPORT1/ hg -R copy-pull pull --config web.cacerts=pub-expired.pem https://localhost:$HGPORT2/
-  abort: error: *:SSL3_GET_SERVER_CERTIFICATE:certificate verify failed (glob)
+  abort: error: *certificate verify failed* (glob)
   [255]