sequencer: use const variable for commit message comments

This makes it easier to use and reuse the comments.

Mentored-by: Christian Couder <[email protected]>
Mentored-by: Phillip Wood <[email protected]>
Reviewed-by: Taylor Blau <[email protected]>
Signed-off-by: Charvi Mendiratta <[email protected]>
Signed-off-by: Junio C Hamano <[email protected]>

Author: charvi-077

sequencer.c

@@ -1732,6 +1732,11 @@ static size_t subject_length(const char *body)
 	return p - body;
 }
 
+static const char first_commit_msg_str[] = N_("This is the 1st commit message:");
+static const char nth_commit_msg_fmt[] = N_("This is the commit message #%d:");
+static const char skip_nth_commit_msg_fmt[] = N_("The commit message #%d will be skipped:");
+static const char combined_commit_msg_fmt[] = N_("This is a combination of %d commits.");
+
 static void append_squash_message(struct strbuf *buf, const char *body,
 				  struct replay_opts *opts)
 {
@@ -1741,7 +1746,7 @@ static void append_squash_message(struct strbuf *buf, const char *body,
 	if (starts_with(body, "squash!") || starts_with(body, "fixup!"))
 		commented_len = subject_length(body);
 	strbuf_addf(buf, "\n%c ", comment_line_char);
-	strbuf_addf(buf, _("This is the commit message #%d:"),
+	strbuf_addf(buf, _(nth_commit_msg_fmt),
 		    ++opts->current_fixup_count + 1);
 	strbuf_addstr(buf, "\n\n");
 	strbuf_add_commented_lines(buf, body, commented_len);
@@ -1770,7 +1775,7 @@ static int update_squash_messages(struct repository *r,
 			buf.buf : strchrnul(buf.buf, '\n');
 
 		strbuf_addf(&header, "%c ", comment_line_char);
-		strbuf_addf(&header, _("This is a combination of %d commits."),
+		strbuf_addf(&header, _(combined_commit_msg_fmt),
 			    opts->current_fixup_count + 2);
 		strbuf_splice(&buf, 0, eol - buf.buf, header.buf, header.len);
 		strbuf_release(&header);
@@ -1794,9 +1799,9 @@ static int update_squash_messages(struct repository *r,
 		}
 
 		strbuf_addf(&buf, "%c ", comment_line_char);
-		strbuf_addf(&buf, _("This is a combination of %d commits."), 2);
+		strbuf_addf(&buf, _(combined_commit_msg_fmt), 2);
 		strbuf_addf(&buf, "\n%c ", comment_line_char);
-		strbuf_addstr(&buf, _("This is the 1st commit message:"));
+		strbuf_addstr(&buf, _(first_commit_msg_str));
 		strbuf_addstr(&buf, "\n\n");
 		strbuf_addstr(&buf, body);
 
@@ -1812,7 +1817,7 @@ static int update_squash_messages(struct repository *r,
 		append_squash_message(&buf, body, opts);
 	} else if (command == TODO_FIXUP) {
 		strbuf_addf(&buf, "\n%c ", comment_line_char);
-		strbuf_addf(&buf, _("The commit message #%d will be skipped:"),
+		strbuf_addf(&buf, _(skip_nth_commit_msg_fmt),
 			    ++opts->current_fixup_count + 1);
 		strbuf_addstr(&buf, "\n\n");
 		strbuf_add_commented_lines(&buf, body, strlen(body));