Modified TCLLIBPATH appendations in scripts/linuxcnc.in and

scripts/rip-environment.in since they are not in TCL list style but in
PATH style. In PATH style, the current appendation causes the Linuxcnc
TCL package not to be found if there is already a TCLLIBPATH definition.

Author: fwillo

scripts/linuxcnc.in

@@ -98,7 +98,7 @@ if test "xyes" != "x@RUN_IN_PLACE@"; then
     if [ -z "$TCLLIBPATH" ]; then
          TCLLIBPATH=$LINUXCNC_HOME/lib/tcltk
     else
-        TCLLIBPATH=$LINUXCNC_HOME/lib/tcltk:"$TCLLIBPATH"
+        TCLLIBPATH="$LINUXCNC_HOME/lib/tcltk $TCLLIBPATH"
     fi
     export TCLLIBPATH
 fi

scripts/rip-environment.in

@@ -76,7 +76,7 @@ GLADE_ICON_THEME_PATH=$EMC2_HOME/share/glade/pixmaps:"$GLADE_ICON_THEME_PATH"; e
 if [ -z "$TCLLIBPATH" ]; then
     TCLLIBPATH=$EMC2_HOME/tcl
 else
-    TCLLIBPATH=$EMC2_HOME/tcl:$TCLLIBPATH
+    TCLLIBPATH="$EMC2_HOME/tcl $TCLLIBPATH"
 fi
 
 if [ -z "$LD_LIBRARY_PATH" ]; then