psql: Fix \? output alignment

This was inadvertently changed in commit c64e68fd.

src/bin/psql/help.c

@@ -247,7 +247,7 @@ slashUsage(unsigned short int pager)
 	fprintf(output, _("  \\f [STRING]            show or set field separator for unaligned query output\n"));
 	fprintf(output, _("  \\H                     toggle HTML output mode (currently %s)\n"),
 			ON(pset.popt.topt.format == PRINT_HTML));
-	fprintf(output, _("  \\pset [NAME [VALUE]]     set table output option\n"
+	fprintf(output, _("  \\pset [NAME [VALUE]]   set table output option\n"
 					  "                         (NAME := {format|border|expanded|fieldsep|fieldsep_zero|footer|null|\n"
 					  "                         numericlocale|recordsep|recordsep_zero|tuples_only|title|tableattr|pager|\n"
 					  "                         unicode_border_linestyle|unicode_column_linestyle|unicode_header_linestyle})\n"));