Typo fix

src/66/66-shutdownd.c

src/lib66/environ/env_import_version_file.c

src/lib66/exec/ssexec_configure.c

src/lib66/exec/ssexec_remove.c

src/lib66/exec/ssexec_scandir_create.c

src/lib66/exec/ssexec_scandir_remove.c

src/lib66/exec/ssexec_snapshot_list.c

src/lib66/exec/ssexec_tree_status.c

src/lib66/module/regex_configure.c