[ 10466]
MULTIPLICITY fix for S_grok_number(), also a few gratuitious trailing
whitespace tweaks.
Still coredumps in pragma/overload.t - what a nice hard fail that is...
p4raw-link: @10466 on //depot/perlio:
6fa402ec5b578488e91e8f7d99060bcd035f4979
p4raw-id: //depot/perl@10467