test: use generaldelta in 'test-ssh-bundle1.t'

This has effect on the capabilities string.

tests/test-ssh-bundle1.t

@@ -5,6 +5,8 b' parts that are not bundle1/bundle2 speci'
   > [experimental]
   > # This test is dedicated to interaction through old bundle
   > bundle2-exp = False
+  > [format] # temporary settings
+  > usegeneraldelta=yes
   > EOF
 
 
@@ -460,8 +462,8 b' debug output'
   running python ".*/dummyssh" user@dummy ('|")hg -R remote serve --stdio('|") (re)
   sending hello command
   sending between command
-  remote: 345
-  remote: capabilities: lookup changegroupsubset branchmap pushkey known getbundle unbundlehash batch stream bundle2=HG20%0Achangegroup%3D01%2C02%0Adigests%3Dmd5%2Csha1%2Csha512%0Aerror%3Dabort%2Cunsupportedcontent%2Cpushraced%2Cpushkey%0Ahgtagsfnodes%0Alistkeys%0Apushkey%0Aremote-changegroup%3Dhttp%2Chttps unbundle=HG10GZ,HG10BZ,HG10UN httpheader=1024
+  remote: 371
+  remote: capabilities: lookup changegroupsubset branchmap pushkey known getbundle unbundlehash batch streamreqs=generaldelta,revlogv1 bundle2=HG20%0Achangegroup%3D01%2C02%0Adigests%3Dmd5%2Csha1%2Csha512%0Aerror%3Dabort%2Cunsupportedcontent%2Cpushraced%2Cpushkey%0Ahgtagsfnodes%0Alistkeys%0Apushkey%0Aremote-changegroup%3Dhttp%2Chttps unbundle=HG10GZ,HG10BZ,HG10UN httpheader=1024
   remote: 1
   preparing listkeys for "bookmarks"
   sending listkeys command