tests: use "?" to glob both ":" and ";" in output for test portability

If environment variable looks like PATH or so (e.g. any of components
joined by ":" contains "/"), ":" in it is replaced with ";" by MinGW
at spawning Windows native process, to follow path concatenation style
of Windows.

Therefore, "bundle:../full.hg" is converted into "bundle;..\full.hg"
on MinGW.

Difference between "/" and "\" is automatically ignored by "(glob)",
but difference between ":" and ";" should be globed explicitly.

tests/test-bundle.t

@@ -232,7 +232,7 b' hg -R bundle://../full.hg verify'
   adding manifests
   adding file changes
   added 9 changesets with 7 changes to 4 files (+1 heads)
-  changegroup hook: HG_NODE=f9ee2f85a263049e9ae6d37a0e67e96194ffb735 HG_NODE_LAST=aa35859c02ea8bd48da5da68cd2740ac71afcbaf HG_SOURCE=pull HG_TXNID=TXN:* HG_URL=bundle:../full.hg (glob)
+  changegroup hook: HG_NODE=f9ee2f85a263049e9ae6d37a0e67e96194ffb735 HG_NODE_LAST=aa35859c02ea8bd48da5da68cd2740ac71afcbaf HG_SOURCE=pull HG_TXNID=TXN:* HG_URL=bundle?../full.hg (glob)
   (run 'hg heads' to see heads, 'hg merge' to merge)
 
 Rollback empty