0.6.23d
* watch4str(): Fixed sliding buffer; improved EOF handling; main buffer extension
`fsignal():` cleaner, simpler, correct
Unused variables sanitizing; `checkgr()`: `regcomp()`/`regfree()` memory leak fixed
Fix: `empty: Data stream is empty. Keyphrase wasn't found. Exit on timeout`
man-page minor tweaks
The [-t] timeout for [-e] flag works now correctly
Suppport for control characters