i18n: unpack-trees: mark strings for translation

Mark strings seen by the user inside setup_unpack_trees_porcelain() and
display_error_msgs() functions for translation.

Signed-off-by: Vasco Almeida <vascomalmeida@sapo.pt>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
diff --git a/unpack-trees.c b/unpack-trees.c
index 9f55cc2..4bc6b4f 100644
--- a/unpack-trees.c
+++ b/unpack-trees.c
@@ -61,21 +61,21 @@
 	const char *cmd2 = strcmp(cmd, "checkout") ? cmd : "switch branches";
 
 	if (advice_commit_before_merge)
-		msg = "Your local changes to the following files would be overwritten by %s:\n%%s"
-			"Please, commit your changes or stash them before you can %s.";
+		msg = _("Your local changes to the following files would be overwritten by %s:\n%%s"
+			"Please, commit your changes or stash them before you can %s.");
 	else
-		msg = "Your local changes to the following files would be overwritten by %s:\n%%s";
+		msg = _("Your local changes to the following files would be overwritten by %s:\n%%s");
 	msgs[ERROR_WOULD_OVERWRITE] = msgs[ERROR_NOT_UPTODATE_FILE] =
 		xstrfmt(msg, cmd, cmd2);
 
 	msgs[ERROR_NOT_UPTODATE_DIR] =
-		"Updating the following directories would lose untracked files in it:\n%s";
+		_("Updating the following directories would lose untracked files in it:\n%s");
 
 	if (advice_commit_before_merge)
-		msg = "The following untracked working tree files would be %s by %s:\n%%s"
-			"Please move or remove them before you can %s.";
+		msg = _("The following untracked working tree files would be %s by %s:\n%%s"
+			"Please move or remove them before you can %s.");
 	else
-		msg = "The following untracked working tree files would be %s by %s:\n%%s";
+		msg = _("The following untracked working tree files would be %s by %s:\n%%s");
 
 	msgs[ERROR_WOULD_LOSE_UNTRACKED_REMOVED] = xstrfmt(msg, "removed", cmd, cmd2);
 	msgs[ERROR_WOULD_LOSE_UNTRACKED_OVERWRITTEN] = xstrfmt(msg, "overwritten", cmd, cmd2);
@@ -84,14 +84,14 @@
 	 * Special case: ERROR_BIND_OVERLAP refers to a pair of paths, we
 	 * cannot easily display it as a list.
 	 */
-	msgs[ERROR_BIND_OVERLAP] = "Entry '%s' overlaps with '%s'.  Cannot bind.";
+	msgs[ERROR_BIND_OVERLAP] = _("Entry '%s' overlaps with '%s'.  Cannot bind.");
 
 	msgs[ERROR_SPARSE_NOT_UPTODATE_FILE] =
-		"Cannot update sparse checkout: the following entries are not up-to-date:\n%s";
+		_("Cannot update sparse checkout: the following entries are not up-to-date:\n%s");
 	msgs[ERROR_WOULD_LOSE_ORPHANED_OVERWRITTEN] =
-		"The following Working tree files would be overwritten by sparse checkout update:\n%s";
+		_("The following Working tree files would be overwritten by sparse checkout update:\n%s");
 	msgs[ERROR_WOULD_LOSE_ORPHANED_REMOVED] =
-		"The following Working tree files would be removed by sparse checkout update:\n%s";
+		_("The following Working tree files would be removed by sparse checkout update:\n%s");
 
 	opts->show_all_errors = 1;
 	/* rejected paths may not have a static buffer */
@@ -168,7 +168,7 @@
 		string_list_clear(rejects, 0);
 	}
 	if (something_displayed)
-		fprintf(stderr, "Aborting\n");
+		fprintf(stderr, _("Aborting\n"));
 }
 
 /*