SW-114: Better adapted help message beamctl

MAC/APL/PAC/ITRFBeamServer/src/beamctl.cc

@@ -550,9 +550,9 @@ void beamctl::usage() const
         "                    # SKYSCAN will scan the sky with a L x M grid in the (l,m) plane\n"
         "  --anadir=longitude,latitude,type[,duration]\n"
         "                    # direction of the analogue HBA beam\n"
-        "  --rcumode=0..7    # Old-style RCU mode to use (DEPRECATED; only available for"
-        "                      compatibility with existing scripts. Please use antenna- "
-        "                      set + band selection. The rcumode selected here must not "
+        "  --rcumode=0..7    # Old-style RCU mode to use (DEPRECATED; only available for\n"
+        "                      compatibility with existing scripts. Please use antenna-\n"
+        "                      set + band selection. The rcumode selected here must not\n"
         "                      conflict with the selected antennaset)\n"
         "  --help            # print this usage\n"
         "\n"