[RFA] Add nexti to list of commands supporting background execution

[Doug Evans]

I think this was an oversight.

Ok to check in?

2009-01-21  Doug Evans  <dje@google.com>

	* gdb.texinfo: Add nexti to list of commands that support
	background execution.

Index: gdb.texinfo
===================================================================
RCS file: /cvs/src/src/gdb/doc/gdb.texinfo,v
retrieving revision 1.546
diff -u -p -u -p -r1.546 gdb.texinfo
--- gdb.texinfo	14 Jan 2009 20:40:08 -0000	1.546
+++ gdb.texinfo	22 Jan 2009 06:58:32 -0000
@@ -4679,6 +4679,10 @@ are:
 @kindex next&
 @xref{Continuing and Stepping, next}.
 
+@item nexti
+@kindex nexti&
+@xref{Continuing and Stepping, nexti}.
+
 @item continue
 @kindex continue&
 @xref{Continuing and Stepping, continue}.