Replaced adduser with useradd

useradd is available in most distributions, adduser is not.

Signed-off-by: Ben Clark <ben@benjyc.uk>

build.gradle

@@ -197,8 +197,6 @@ def generate_distro_tasks = { dist, gDescription, gPackageName, gInputFile, gVer
                 configurationFile('/etc/default/openhab2')
                 configurationFile('/usr/lib/systemd/system/openhab2.service')
 
-                requires('adduser')
-
                 FileTree tar = tarTree(gInputFile)
                 suckUpEmptyDirectories('/var/log/openhab2', user, permissionGroup, 0755)
                 suckUpEmptyDirectories('/var/lib/openhab2/persistence/db4o', user, permissionGroup, 0755)

resources/deb/control-runtime/preinst

@@ -21,12 +21,12 @@ case "$1" in
 			OH_GROUP=`echo ${USER_AND_GROUP} | cut -d ":" -f 2`
 		fi
 		if ! getent group "$OH_GROUP" > /dev/null 2>&1 ; then
-			addgroup --system "$OH_GROUP" --quiet
+			groupadd --system "$OH_GROUP"
 		fi
 		if ! getent passwd "$OH_USER" > /dev/null 2>&1 ; then
-			adduser --quiet --system --ingroup "$OH_GROUP" --no-create-home \
-			--disabled-password --shell /bin/false \
-			--gecos "openhab2 runtime user" --home /var/lib/openhab2 "$OH_USER"
+			adduser --quiet --system -g "$OH_GROUP"  \
+			--shell /bin/false \
+			--home /var/lib/openhab2 "$OH_USER"
 		fi
 		;;
 esac