Enable hbal to use the new command line option

hbal.1

@@ -29,6 +29,7 @@ Algorithm options:
 .B "[ --no-disk-moves ]"
 .BI "[ -U " util-file " ]"
 .B "[ --evac-mode ]"
+.BI "[ --exclude-instances " inst... " ]"
 
 .TP
 Reporting options:
@@ -408,6 +409,12 @@ to the ones living on offline/drained nodes. It can be used as a
 (bulk) replacement for Ganeti's own \fIgnt-node evacuate\fR, with the
 note that it doesn't guarantee full evacuation.
 
+.TP
+.BI "--exclude-instances " instances
+This parameter marks the given instances (as a comma-separated list)
+from being moved during the rebalance. Note that the instances must be
+given their full name (as reported by Ganeti).
+
 .TP
 .BI "-U" util-file
 This parameter specifies a file holding instance dynamic utilisation

hbal.hs

@@ -74,6 +74,7 @@ options =
     , oDiskMoves
     , oDynuFile
     , oExTags
+    , oExInst
     , oShowVer
     , oShowHelp
     ]