tweaks: add two more translator hints

src/global.c

@@ -851,6 +851,7 @@ void shortcut_init(void)
 		/* TRANSLATORS: This starts a backward search. */
 		N_("Where Was"), WITHORSANS(wherewas_gist), TOGETHER, VIEW);
 	add_to_funcs(do_findprevious, MMAIN|MHELP|MBROWSER,
+		/* TRANSLATORS: This refers to searching the preceding occurrence. */
 		N_("Previous"), WITHORSANS(findprev_gist), TOGETHER, VIEW);
 	add_to_funcs(do_findnext, MMAIN|MHELP|MBROWSER,
 		N_("Next"), WITHORSANS(findnext_gist), BLANKAFTER, VIEW);

src/winio.c

@@ -2058,6 +2058,7 @@ void titlebar(const char *path)
 	/* Figure out the path, prefix and state strings. */
 #ifdef ENABLE_COLOR
 	if (currmenu == MLINTER) {
+		/* TRANSLATORS: The next four are "labels" in the title bar. */
 		prefix = _("Linting --");
 		path = openfile->filename;
 	} else