lib-lda: Added missing include file. This fixes building Pigeonhole in some systems.
lib-lda: Added missing include file.
This fixes building Pigeonhole in some systems.

LTD-Beget/dovecot,LTD-Beget/dovecot,LTD-Beget/dovecot,LTD-Beget/dovecot,LTD-Beget/dovecot