PCMK_XE_SOURCE    928 include/crm/msg_xml_compat.h #define XML_DIFF_VSOURCE PCMK_XE_SOURCE
PCMK_XE_SOURCE    292 lib/common/patchset.c     v = pcmk__xe_create(version, PCMK_XE_SOURCE);
PCMK_XE_SOURCE    773 lib/common/patchset.c             label = added? PCMK_XE_TARGET : PCMK_XE_SOURCE;