psql: Include \pset xheader_width in --help=commands|variables

psql's --help was missed the description of the \pset variable
xheader_width, that should be listed when using \? or --help=commands,
and described for --help=variables.

Oversight in a45388d6e098.

Author: Pavel Luzanov
Discussion: https://postgr.es/m/1e3e06d6-0807-4e62-a9f6-c11481e6eb10@postgrespro.ru
Backpatch-through: 16

diff --git a/src/bin/psql/help.c b/src/bin/psql/help.c
index 02fe5d151e0c79512cd8ce7c63591f773f4342c0..cfd9797423b005e68f56d57593c5892355b24085 100644 (file)
--- a/src/bin/psql/help.c
+++ b/src/bin/psql/help.c
@@ -294,7 +294,7 @@ slashUsage(unsigned short int pager)
          "                         numericlocale|pager|pager_min_lines|recordsep|\n"
          "                         recordsep_zero|tableattr|title|tuples_only|\n"
          "                         unicode_border_linestyle|unicode_column_linestyle|\n"
-         "                         unicode_header_linestyle)\n");
+         "                         unicode_header_linestyle|xheader_width)\n");
    HELPN("  \\t [on|off]            show only rows (currently %s)\n",
          ON(pset.popt.topt.tuples_only));
    HELP0("  \\T [STRING]            set HTML <table> tag attributes, or unset if none\n");
@@ -495,6 +495,9 @@ helpVariables(unsigned short int pager)
          "  unicode_column_linestyle\n"
          "  unicode_header_linestyle\n"
          "    set the style of Unicode line drawing [single, double]\n");
+   HELP0("  xheader_width\n"
+         "    set the maximum width of the header for expanded output\n"
+         "    [full, column, page, integer value]\n");
 
    HELP0("\nEnvironment variables:\n");
    HELP0("Usage:\n");