git-svn: get rid of additional fetch-arguments

It's not really useful anymore now that we have a better
--follow-parent for the valid cases.  Any other use
of it is not valid.

Signed-off-by: Eric Wong <normalperson@yhbt.net>

Documentation/git-svn.txt

@@ -49,9 +49,6 @@ remotes/git-svn and work on that branch.  Use the 'dcommit'
 command (see below) to write git commits back to
 remotes/git-svn.
 
-See '<<fetch-args,Additional Fetch Arguments>>' if you are interested in
-manually joining branches on commit.
-
 'dcommit'::
 	Commit each diff from a specified head directly to the SVN
 	repository, and then rebase or reset (depending on whether or
@@ -443,27 +440,6 @@ be remotes/$GIT_SVN_ID, instead of remotes/git-svn.  Any
 remotes/$GIT_SVN_ID branch should never be modified by the user outside
 of git-svn commands.
 
-[[fetch-args]]
-ADDITIONAL FETCH ARGUMENTS
---------------------------
-This is for advanced users, most users should ignore this section.
-
-Unfetched SVN revisions may be imported as children of existing commits
-by specifying additional arguments to 'fetch'.  Additional parents may
-optionally be specified in the form of sha1 hex sums at the
-command-line.  Unfetched SVN revisions may also be tied to particular
-git commits with the following syntax:
-
-------------------------------------------------
-	svn_revision_number=git_commit_sha1
-------------------------------------------------
-
-This allows you to tie unfetched SVN revision 375 to your current HEAD:
-
-------------------------------------------------
-	git-svn fetch 375=$(git-rev-parse HEAD)
-------------------------------------------------
-
 If you're tracking a directory that has moved, or otherwise been
 branched or tagged off of another directory in the repository and you
 care about the full history of the project, then you can use

git-svn.perl

@@ -277,8 +277,13 @@ sub cmd_init {
 }
 
 sub cmd_fetch {
+	if (@_) {
+		die "Additional fetch arguments are no longer supported.\n",
+		    "Use --follow-parent if you have moved/copied directories
+		    instead.\n";
+	}
 	my $gs = Git::SVN->new;
-	$gs->fetch(@_);
+	$gs->fetch;
 	if ($gs->{last_commit} && !verify_ref('refs/heads/master^0')) {
 		command_noisy(qw(update-ref refs/heads/master),
 		              $gs->{last_commit});