The current sed script delete everything (#225)

* The current sed script delete everything

This easy fix, while not super robust, seems a first good patch

* Clean only when there is more then one status

* Sync Changelog

CHANGELOG.md

@@ -6,6 +6,9 @@ and this project adheres to [Semantic Versioning](http://semver.org/spec/v2.0.0.
 
 ## [Unreleased]
 
+### Fixed
+- set-status: fix a bug that delete the status (#224)
+
 ## [0.15.0] 2022-09-11
 ### Added
 - mount-out: new command to remove or unmount a previously mount-in folder or fs

share/pot/set-status.sh

@@ -43,9 +43,11 @@ _set_status()
 
 	echo "pot.status=$_new_status" >> "$_status_file"
 	# remove first (and outdated) occurrence of pot.status
-	${SED} -i '' -n -e ":a" \
-		-e '/^pot\.status=/{n;bc' -e ':c' -e 'p;n;bc' -e '}' \
-		-e "p;n;ba" "$_status_file"
+	if [ "$(grep -c "^pot\.status=" "$_status_file")" -gt 1 ]; then
+		${SED} -i '' -n -e ":a" \
+			-e '/^pot\.status=/{n;bc' -e ':c' -e 'p;n;bc' -e '}' \
+			-e "p;n;ba" "$_status_file"
+	fi
 }
 
 pot-set-status()