Fix overlocking bug caused by too high of rec count
Fix overlocking bug caused by too high of rec count

The count is not how many times the lock is locked, but how many
ADDITONAL times it's been locked. So if it only locked the one time, the
count is 0. This code assumed it had to be at least 1, which causes
unlocks to hang.

kachick/rubinius,digitalextremist/rubinius,sferik/rubinius,ngpestelos/rubinius,kachick/rubinius,Wirachmat/rubinius,heftig/rubinius,jsyeo/rubinius,lgierth/rubinius,digitalextremist/rubinius,benlovell/rubinius,jsyeo/rubinius,mlarraz/rubinius,sferik/rubinius,benlovell/rubinius,lgierth/rubinius,ruipserra/rubinius,Azizou/rubinius,kachick/rubinius,kachick/rubinius,dblock/rubinius,jemc/rubinius,mlarraz/rubinius,heftig/rubinius,dblock/rubinius,benlovell/rubinius,ngpestelos/rubinius,lgierth/rubinius,jsyeo/rubinius,digitalextremist/rubinius,Azizou/rubinius,ruipserra/rubinius,ruipserra/rubinius,Wirachmat/rubinius,heftig/rubinius,mlarraz/rubinius,lgierth/rubinius,pH14/rubinius,Wirachmat/rubinius,kachick/rubinius,digitalextremist/rubinius,lgierth/rubinius,pH14/rubinius,ruipserra/rubinius,kachick/rubinius,dblock/rubinius,jsyeo/rubinius,lgierth/rubinius,ngpestelos/rubinius,sferik/rubinius,jemc/rubinius,sferik/rubinius,Azizou/rubinius,pH14/rubinius,ruipserra/rubinius,Azizou/rubinius,jemc/rubinius,kachick/rubinius,mlarraz/rubinius,ngpestelos/rubinius,pH14/rubinius,dblock/rubinius,Azizou/rubinius,benlovell/rubinius,sferik/rubinius,Wirachmat/rubinius,pH14/rubinius,lgierth/rubinius,benlovell/rubinius,digitalextremist/rubinius,jsyeo/rubinius,kachick/rubinius,jemc/rubinius,ngpestelos/rubinius,Wirachmat/rubinius,mlarraz/rubinius,ruipserra/rubinius,dblock/rubinius,sferik/rubinius,mlarraz/rubinius,digitalextremist/rubinius,Azizou/rubinius,jemc/rubinius,heftig/rubinius,Wirachmat/rubinius,benlovell/rubinius,jemc/rubinius,pH14/rubinius,jsyeo/rubinius,ngpestelos/rubinius,mlarraz/rubinius,heftig/rubinius,heftig/rubinius,heftig/rubinius,jemc/rubinius,sferik/rubinius,ruipserra/rubinius,dblock/rubinius,pH14/rubinius,Azizou/rubinius,Wirachmat/rubinius,digitalextremist/rubinius,benlovell/rubinius,jsyeo/rubinius,ngpestelos/rubinius,dblock/rubinius