adapt help macro to function name

src/66/66.c

src/include/66/ssexec.h

src/lib66/exec/ssexec_scandir_signal.c

src/lib66/exec/ssexec_scandir_wrapper.c

src/lib66/exec/ssexec_signal.c

src/lib66/exec/ssexec_status.c

src/lib66/exec/ssexec_tree_admin.c

src/lib66/exec/ssexec_tree_signal.c

src/lib66/exec/ssexec_tree_status.c

src/lib66/exec/ssexec_tree_wrapper.c