api: followup style/comment improvements

try to comment why not what, what is already described good enough by
the code here.

Also, we want to go up to 100cc text-width if it improves
readability, which for post-if's it most often does.

Signed-off-by: Thomas Lamprecht <t.lamprecht@proxmox.com>

PVE/API2/Storage/Status.pm

@@ -487,10 +487,8 @@ __PACKAGE__->register_method ({
 
 	    eval { run_command($cmd, errmsg => 'import failed'); };
 
-	    # unlinks only the temporary file from the http server
-	    unlink $tmpfilename;
-	    warn "unable to clean up temporary file '$tmpfilename' - $!\n"
-		if $! && $! != ENOENT;
+	    unlink $tmpfilename; # the temporary file got only uploaded locally, no need to rm remote
+	    warn "unable to clean up temporary file '$tmpfilename' - $!\n" if $! && $! != ENOENT;
 
 	    if (my $err = $@) {
 		eval { $err_cleanup->() };