[PATCH] tests: make tests for convert with svn portable

[FUJIWARA Katsunori]

# HG changeset patch
# User FUJIWARA Katsunori <foozy at lares.dti.ne.jp>
# Date 1457968493 -32400
#      Tue Mar 15 00:14:53 2016 +0900
# Node ID 732e217dd9483282e173d9afbb9cd65e19262629
# Parent  859af6e78368600f724ccc26397ec30b145bffdb
tests: make tests for convert with svn portable

svn 1.6.x (at least, 1.6.12 or 1.6.17) might display empty lines, even
though svn 1.9.x (at least, 1.9.3) doesn't.

To make tests for convert with svn portable, this patch adds "|(^$)"
regexp to egrep in filter_svn_output.

To avoid similar future issue, this patch adds "|(^$)" regexp to all
filter_svn_output (and adjusts test-subrepo-svn.t), even though only
test-convert-svn-source.t fails with svn 1.6.x, AFAIK.

diff --git a/tests/test-convert-hg-svn.t b/tests/test-convert-hg-svn.t
--- a/tests/test-convert-hg-svn.t
+++ b/tests/test-convert-hg-svn.t
@@ -1,7 +1,7 @@
 #require svn svn-bindings
 
   $ filter_svn_output () {
-  >     egrep -v 'Committing|Updating' | sed -e 's/done$//' || true
+  >     egrep -v 'Committing|Updating|(^$)' | sed -e 's/done$//' || true
   > }
 
   $ cat <<EOF >> $HGRCPATH
diff --git a/tests/test-convert-svn-source.t b/tests/test-convert-svn-source.t
--- a/tests/test-convert-svn-source.t
+++ b/tests/test-convert-svn-source.t
@@ -1,7 +1,7 @@
 #require svn svn-bindings
 
   $ filter_svn_output () {
-  >     egrep -v 'Committing|Updating' | sed -e 's/done$//' || true
+  >     egrep -v 'Committing|Updating|(^$)' | sed -e 's/done$//' || true
   > }
 
   $ cat >> $HGRCPATH <<EOF
diff --git a/tests/test-subrepo-svn.t b/tests/test-subrepo-svn.t
--- a/tests/test-subrepo-svn.t
+++ b/tests/test-subrepo-svn.t
@@ -8,7 +8,7 @@
 #endif
 
   $ filter_svn_output () {
-  >     egrep -v 'Committing|Transmitting|Updating' || true
+  >     egrep -v 'Committing|Transmitting|Updating|(^$)' || true
   > }
 
 create subversion repo
@@ -97,10 +97,8 @@ change file in svn and hg, commit
   committing subrepository s
   Sending*s/alpha (glob)
   Committed revision 3.
-  
   Fetching external item into '*s/externals'* (glob)
   External at revision 1.
-  
   At revision 3.
   $ hg debugsub
   path s