Remove superfluous trailing white space from TCL files

site_ansto/instrument/sans/config/parameters/parameters.tcl

@@ -1,4 +1,4 @@
-# TODO Make readonly getset macro for AttFactor 
+# TODO Make readonly getset macro for AttFactor
 
 ##
 # @file The velocity selector position is used as the reference for other instrument
@@ -112,7 +112,7 @@ namespace eval parameters {
 	set paramlist {
 		AttFactor
 		BSdiam
-    DetPosYOffset    
+    DetPosYOffset
 		EApPosY
 		EApShape
 		EApX
@@ -121,8 +121,8 @@ namespace eval parameters {
 		L1
 		L2
 		Plex
-    SamYOffset 
-    Transmission 
+    SamYOffset
+    Transmission
 	}
 }
 ##
@@ -144,9 +144,9 @@ proc ::parameters::missingparams {} {
 }
 
 ##
-# @brief Check list 
+# @brief Check list
 proc check {args} {
-  switch $args { 
+  switch $args {
     "missing" {
       ::parameters::missingparams
     }