Set pcre version to 0.94.4
Set pcre version to 0.94.4

Running 'make' in the chroot complains about pcre 0.94.4
being required.

Signed-off-by: Helga Velroyen <2d0126b1ec6f9ec5cbec4a7012aa14faeaef10f5@google.com>
Reviewed-by: Michele Tartara <05f7077a2c6cbbdc4af4ba42e3ef89a0df846179@google.com>

leshchevds/ganeti,grnet/snf-ganeti,onponomarev/ganeti,yiannist/ganeti,yiannist/ganeti,apyrgio/ganeti,ganeti-github-testing/ganeti-test-1,yiannist/ganeti,apyrgio/ganeti,andir/ganeti,mbakke/ganeti,dimara/ganeti,onponomarev/ganeti,leshchevds/ganeti,apyrgio/snf-ganeti,ganeti/ganeti,andir/ganeti,ganeti/ganeti,mbakke/ganeti,ganeti-github-testing/ganeti-test-1,grnet/snf-ganeti,apyrgio/snf-ganeti,dimara/ganeti,ganeti/ganeti,leshchevds/ganeti,andir/ganeti,bitemyapp/ganeti,bitemyapp/ganeti,mbakke/ganeti