Spell software correctly

tests/cluster/cluster.tcl

 # Cluster-specific test functions.
 #
 # Copyright (C) 2014 Salvatore Sanfilippo antirez@gmail.com
-# This softare is released under the BSD License. See the COPYING file for
+# This software is released under the BSD License. See the COPYING file for
 # more information.
 
 # Returns a parsed CLUSTER NODES output as a list of dictionaries.

tests/cluster/run.tcl

 # Cluster test suite. Copyright (C) 2014 Salvatore Sanfilippo antirez@gmail.com
-# This softare is released under the BSD License. See the COPYING file for
+# This software is released under the BSD License. See the COPYING file for
 # more information.
 
 cd tests/cluster

tests/instances.tcl

@@ -4,7 +4,7 @@
 # instances.
 #
 # Copyright (C) 2014 Salvatore Sanfilippo antirez@gmail.com
-# This softare is released under the BSD License. See the COPYING file for
+# This software is released under the BSD License. See the COPYING file for
 # more information.
 
 package require Tcl 8.5

tests/sentinel/run.tcl

 # Sentinel test suite. Copyright (C) 2014 Salvatore Sanfilippo antirez@gmail.com
-# This softare is released under the BSD License. See the COPYING file for
+# This software is released under the BSD License. See the COPYING file for
 # more information.
 
 cd tests/sentinel

tests/test_helper.tcl

 # Redis test suite. Copyright (C) 2009 Salvatore Sanfilippo antirez@gmail.com
-# This softare is released under the BSD License. See the COPYING file for
+# This software is released under the BSD License. See the COPYING file for
 # more information.
 
 package require Tcl 8.5