Fix shell equality syntax.

software/backupserver/software.cfg

@@ -196,7 +196,7 @@ mode = 0644
 [template-backup-script]
 recipe = slapos.recipe.template
 url = ${:_profile_base_location_}/template-backup-script.sh.in
-md5sum = ce63dd27aaea8b64f446a7aef9406873
+md5sum = 92183f2d42e8ffb8112f26ecab2cdcbc
 output = ${buildout:directory}/template-backup-script.sh.in
 mode = 0644
 

software/backupserver/template-backup-script.sh.in

@@ -22,7 +22,7 @@ ${rdiff-backup-output:rdiff-backup} \
 RESULT=$?
  
 # Inform about backup status
-if [ $RESULT == 0 ]
+if [ $RESULT -eq 0 ]
 then
   ${coreutils-output:echo} "`${coreutils-output:date} -u`, $${:hostname} backup success" >> $${:status_log}
 else