genautomata.c (gen_regexp_repeat, [...]): Use the string found in vector element 0 rather than the original string when...

	* genautomata.c (gen_regexp_repeat, gen_regexp_allof,
	gen_regexp_oneof, gen_regexp_sequence): Use the string found
	in vector element 0 rather than the original string when there's
	only one element.
	(gen_regexp): Remove extra semicolon.

From-SVN: r163600