api: correct uninitialized variable issue
api: correct auks_buffer to remove cppcheck detected style issues
api: correct auks_cred/auks_api/auks_acl cppcheck detected style issues
api: correct various cppcheck detected style issues
api: correct various cppcheck detected style issues
api: correct xlibrary cppcheck detected style issues
auksd: correct various cppcheck detected style issues
plugins/slurm: correct various cppcheck detected style issues
changelog: mention cppcheck code cleaning
auks SLURM Spank plugin: add sync=mode conf pragma (cf man auks.so)