gdb/

gdb/
	Execute -ix and -iex only after system and user gdbinit files.
	* main.c (captured_main): Move CMDARG_INIT_FILE and CMDARG_INIT_COMMAND
	processing down after gdbinit files.

gdb/doc/
	* gdb.texinfo (File Options): Change -ix and -iex commands that apply
	only after gdbinit files.
	(Startup): Move -iex and -iex commands down after gdbinit files.