Document "memory-tag-violations".

* gdb/doc/gdb.texinfo: (Data): Document	'-memory-tag-violations'.
 (Command Options): Update the example.

ChangeLog

@@ -1,3 +1,8 @@
+2021-10-29  Eli Zaretskii  <eliz@gnu.org>
+
+	* gdb/doc/gdb.texinfo (Command Options): (Data): Document
+	'-memory-tag-violations'.  Update the example.
+
 2021-09-28  Andrew Burgess  <andrew.burgess@embecosm.com>
 
 	* src-release.sh (GDB_SUPPPORT_DIRS): Add libbacktrace.

gdb/doc/gdb.texinfo

@@ -2141,10 +2141,10 @@ on @code{-} after the command name.  For example:
 
 @smallexample
 (@value{GDBP}) print -@key{TAB}@key{TAB}
--address         -max-depth       -raw-values      -union
--array           -null-stop       -repeats         -vtbl
--array-indexes   -object          -static-members
--elements        -pretty          -symbol
+-address         -max-depth               -pretty          -symbol
+-array           -memory-tag-violations   -raw-values      -union
+-array-indexes   -null-stop               -repeats         -vtbl
+-elements        -object                  -static-members
 @end smallexample
 
 Completion will in some cases guide you with a suggestion of what kind
@@ -10003,6 +10003,10 @@ Set limit on string chars or array elements to print.  The value
 Set the threshold after which nested structures are replaced with
 ellipsis.  Related setting: @ref{set print max-depth}.
 
+@item -memory-tag-violations [@code{on}|@code{off}]
+Set printing of additional information about memory tag violations.
+@xref{set print memory-tag-violations}.
+
 @item -null-stop [@code{on}|@code{off}]
 Set printing of char arrays to stop at first null char.  Related
 setting: @ref{set print null-stop}.