Update NEWS and man page

Author: jamielinux

NEWS

@@ -1,3 +1,6 @@
+bashmount 4.3.1 (2020-08-22)
+  - Use sed s/ instead of y/ as the strings are different lengths
+
 bashmount 4.3.0 (2020-07-02)
   - Fix bug when opening crypto_LUKS devices directly
   - Fix error message when an unmount fails

bashmount.1

@@ -133,7 +133,7 @@
 .\" ========================================================================
 .\"
 .IX Title "BASHMOUNT 1"
-.TH BASHMOUNT 1 "2020-07-02" "bashmount 4.3.0" "bashmount"
+.TH BASHMOUNT 1 "2020-08-22" "bashmount 4.3.1" "bashmount"
 .\" For nroff, turn off justification.  Always turn off hyphenation; it makes
 .\" way too many mistakes in technical documents.
 .if n .ad l