postdetails was not generating a new file. Removing any existing file

lgsm/functions/command_postdetails.sh

@@ -42,6 +42,11 @@ fn_bad_postdetailslog() {
 	core_exit.sh
 }
 
+# Remove any existing postdetails.log file
+if [ -f "${postdetailslog}" ]; then
+	rm -f "${postdetailslog}"
+fi
+
 # Rather than a one-pass sed parser, default to using a temporary directory
 if [ -n "${alertflag}" ]; then
 	postdetailslog="${alertlog}"