[binutils-gdb/gdb-7.12-branch] Fix warning in gdb.base/signals-state-child.c

[sergiodj+buildbot at sergiodj dot net]

*** TEST RESULTS FOR COMMIT c0c8e5aea12c938a1e73c1d32912b094c3329288 ***

Author: Yao Qi <yao.qi@linaro.org>
Branch: gdb-7.12-branch
Commit: c0c8e5aea12c938a1e73c1d32912b094c3329288

Fix warning in gdb.base/signals-state-child.c

I see the following warning when running signals-state-child.exp.

gdb/testsuite/gdb.base/signals-state-child.c:77:4: warning: too many arguments for format [-Wformat-extra-args]
    fprintf (out, "sigaction={sa_handler=", i);
    ^

this patch is to remove the argument from fprintf.

gdb/testsuite:

2016-08-12  Yao Qi  <yao.qi@linaro.org>

	* gdb.base/signals-state-child.c (main): Remove "i" from fprintf's
	argument list.