uninitialized variable in parse-datetime.y

[Bruno Haible]

Found by Coverity (1449024):
In lib/parse-datetime.y
line 1822: parser_control pc;
line 1826: if (pc.parse_datetime_debug)
line 1850: pc.parse_datetime_debug = ...;

In line 1826 it is uninitialized.

Bruno

[Paul Eggert]

Thanks, fixed with the attached.