Fix unportable shell quoting.

Fix unportable shell quoting.

/:
	Sync from GCC:

	PR bootstrap/44621
	* configure.ac: Fix unportable shell quoting.
	* configure: Regenerate.

config/:
	* po.m4 (AM_PO_SUBDIRS): Fix unportable shell quoting.

bfd/:
	* configure: Regenerate.

gas/:
	* configure: Regenerate.

gold/:
	* configure: Regenerate.

intl/:
	* configure: Regenerate.

ld/:
	* configure: Regenerate.

opcodes/:
	* configure: Regenerate.

binutils/:
	* configure: Regenerate.

gprof/:
	* configure: Regenerate.