osdc/ObjectCacher.h: prefer prefix ++operator for iterators

Signed-off-by: Danny Al-Gaaf <danny.al-gaaf@bisect.de>
osdc/ObjectCacher.cc: prefer prefix ++/--operator for iterators

Signed-off-by: Danny Al-Gaaf <danny.al-gaaf@bisect.de>
osdc/Objecter.cc: prefer prefix ++operator for iterators

Signed-off-by: Danny Al-Gaaf <danny.al-gaaf@bisect.de>
osdc/Striper.cc: prefer prefix ++operator for iterators

Signed-off-by: Danny Al-Gaaf <danny.al-gaaf@bisect.de>
osdmaptool.cc: prefer prefix ++operator for iterators

Signed-off-by: Danny Al-Gaaf <danny.al-gaaf@bisect.de>
rgw/rgw_acl_s3.cc: prefer prefix ++operator for iterators

Prefer prefix ++operator for iterators, move some iterator declaration into
the for-loop header, since the iterator is only used within the loops.

Signed-off-by: Danny Al-Gaaf <danny.al-gaaf@bisect.de>
rgw/rgw_admin.cc: prefer prefix ++operator for iterators

Signed-off-by: Danny Al-Gaaf <danny.al-gaaf@bisect.de>
rgw/rgw_rados.cc: prefer prefix ++operator for iterators

Signed-off-by: Danny Al-Gaaf <danny.al-gaaf@bisect.de>
rados.cc: prefer prefix ++operator for iterators

Prefer prefix ++operator for iterators, move some iterator declaration into
the for-loop header, since the iterator is only used within the loop.

Signed-off-by: Danny Al-Gaaf <danny.al-gaaf@bisect.de>
rgw/rgw_rados.cc: add bounds check for ++range_iter

Add bound check for ++range_iter in clone_objs_impl(), since range_iter gets
incremented in loop header and inside the loop.

Signed-off-by: Danny Al-Gaaf <danny.al-gaaf@bisect.de>