tests: shrink wait interval for test-convert-bzr-merges

tests/test-convert-bzr-merges

@@ -18,7 +18,7 b' echo evenmorecontent > file-branch1'
 bzr add -q file-branch1
 bzr commit -q -m 'Added branch1 file'
 cd ../source
-sleep 3
+sleep 1
 echo content > file-parent
 bzr add -q file-parent
 bzr commit -q -m 'Added parent file'
@@ -28,7 +28,7 b' cd source-branch2'
 echo somecontent > file-branch2
 bzr add -q file-branch2
 bzr commit -q -m 'Added brach2 file'
-sleep 3
+sleep 1
 cd ../source
 bzr merge -q ../source-branch1
 bzr merge -q --force ../source-branch2