linksLast and uncomment: Fix shellcheck warnings

cde/admin/IntegTools/dbTools/linksLast

@@ -8,9 +8,9 @@
 USAGE="Usage: $0 file.lst"
 
 case $# in
-	0) echo $USAGE;;
+	0) echo "$USAGE";;
 	1);;
-	*) echo $USAGE;;
+	*) echo "$USAGE";;
 esac
 
 awk '
@@ -20,4 +20,4 @@ END {
 	if ( i > 0 )
 		for ( i in links) print links[i];
 }
-'  $@
+'  "$@"

cde/admin/IntegTools/dbTools/uncomment

@@ -5,5 +5,5 @@
 # and coalesce multiple blanks/tabs into a single blank
 #
 
-cat $@ | egrep -v '^[ 	]*#|^[ 	]*$' | sed 's/[ 	][ 	]*/ /g'|\
+cat "$@" | grep -E -v '^[ 	]*#|^[ 	]*$' | sed 's/[ 	][ 	]*/ /g'|\
 sed 's/ $//'