Detect -e Options and -save without -restore

'-e Options without surrounding -save/-restore in the same file shall be warned.
Also a -save without -restore in the same file or same block level shall be warned.

PC-lint Plus Update: In PC-lint Plus, suppression options inside a source module do not “leak” to subsequent modules so this is less of an issue for PC-lint Plus than it was for PC-lint but we do plan to add a warning for -save options that do not have corresponding -restore options in a future update to PC-lint Plus.