git-svn: change ; to && in addremove()

Signed-off-by: Eric Wong <normalperson@yhbt.net>
Signed-off-by: Junio C Hamano <junkio@cox.net>

contrib/git-svn/git-svn

@@ -580,10 +580,10 @@ sub sys { system(@_) == 0 or croak $? }
 
 sub git_addremove {
 	system( "git-diff-files --name-only -z ".
-				" | git-update-index --remove -z --stdin; ".
+				" | git-update-index --remove -z --stdin && ".
 		"git-ls-files -z --others ".
 			"'--exclude-from=$GIT_DIR/$GIT_SVN/info/exclude'".
-				" | git-update-index --add -z --stdin; "
+				" | git-update-index --add -z --stdin"
 		) == 0 or croak $?
 }