tests: fix two http tests to also pass inside manylinux1 docker

This will let us build Linux wheels.

tests/test-clonebundles.t

@@ -61,7 +61,7 b' Server is not running aborts'
   $ echo "http://localhost:$HGPORT1/bundle.hg" > server/.hg/clonebundles.manifest
   $ hg clone http://localhost:$HGPORT server-not-runner
   applying clone bundle from http://localhost:$HGPORT1/bundle.hg
-  error fetching bundle: (.* refused.*|Protocol not supported) (re)
+  error fetching bundle: (.* refused.*|Protocol not supported|Cannot assign requested address) (re)
   abort: error applying bundle
   (if this error persists, consider contacting the server operator or disable clone bundles via "--config ui.clonebundles=false")
   [255]

tests/test-http-proxy.t

@@ -87,7 +87,7 b' bad host:port for proxy ("Protocol not s'
 misconfigured hosts)
 
   $ http_proxy=localhost:$HGPORT2 hg clone --config http_proxy.always=True http://localhost:$HGPORT/ f
-  abort: error: (Connection refused|Protocol not supported|.* actively refused it) (re)
+  abort: error: (Connection refused|Protocol not supported|.* actively refused it|Cannot assign requested address) (re)
   [255]
 
 do not use the proxy if it is in the no list