test-convert-cvs*: mute output from "cvs up"

Apparently some versions of cvs outputs more than other versions. That is
however not relevant for these tests.

tests/test-convert-cvs

@@ -85,7 +85,7 b' echo % commit branch'
 cd src
 cvs -q update -r1.1 b/c
 cvs -q tag -b branch
-cvs -q update -r branch
+cvs -q update -r branch > /dev/null
 echo d >> b/c
 cvs -q commit -mci2 . | grep '<--' |\
     sed -e 's:.*src/\(.*\),v.*:checking in src/\1,v:g'

tests/test-convert-cvs-branch

@@ -38,7 +38,7 b' cd src'
 echo % Branch the project
 
 cvscall tag -b BRANCH
-cvscall up -r BRANCH
+cvscall up -r BRANCH > /dev/null
 
 echo % Modify file a, then b, then a 
 

tests/test-convert-cvs-builtincvsps

@@ -84,7 +84,7 b' echo % commit branch'
 cd src
 cvs -q update -r1.1 b/c
 cvs -q tag -b branch
-cvs -q update -r branch
+cvs -q update -r branch > /dev/null
 echo d >> b/c
 cvs -q commit -mci2 . | grep '<--' |\
     sed -e 's:.*src/\(.*\),v.*:checking in src/\1,v:g'