Fix repeated occurrence of "the" on pmclient man page
pmdagfs2: gcc -Wmaybe-unitialized compilation warnings fix

Made changes in lock_time.c to ensure that glockA and glockB are initialized
as zero prior to having values from the hashmap containing glocks for the
given GFS2 filesystem assigned to them. This siliences the gcc warnings of
potiential unitialized variables in the glock comparision function during
compilation of code.