Add empty IFS for single var reads

utils/scripts/sekrit-rekey.sh

@@ -38,7 +38,7 @@ scratch=$(mktemp -tp "$newdir" .sekrit-scratch-XXXXXXXXXX) ||
     err "failed to create scratch file"
 trap 'rm -fr -- "$scratch" "$newdir"' INT QUIT TERM
 
-sekrit ls | while read -r entry; do
+sekrit ls | while IFS= read -r entry; do
 	printf "%s... " "$entry"
 	sekrit get "$entry" >|"$scratch" ||
 	    err "failed to export entry $entry"

utils/scripts/x-dpi-facesizes.sh

@@ -38,7 +38,7 @@ FACESIZES="8.0 4.0 6.0 7.0 8.0 9.0 10.0 12.0"
 
 basedpi=$(xdpyinfo | grep '^  resolution:' | {
 	min=
-	while read -r line; do
+	while IFS= read -r line; do
 		set -- $line
 		dpi_x=${2%%x*}
 		dpi_y=${2##*x}
@@ -66,7 +66,7 @@ for facesize in $FACESIZES; do
 done | bc -l | {
 	i=0
 	printf "Xft.dpi:\t%.1f\n" "$targetdpi"
-	while read -r v; do
+	while IFS= read -r v; do
 		if [ $i -eq 0 ]; then
 			printf "XTerm.VT100.faceSize:\t%f\n" "$v"
 		else

utils/scripts/zone-serial-number-hook.sh

@@ -64,7 +64,7 @@ zonefile_regex=$(git config --default '\.zone$' hooks.zonefileregex)
 needs_serial_bump=$(git diff-index --name-only --cached "$against" |
     grep -E -- "$zonefile_regex" | {
 	rc=0
-	while read -r filename; do
+	while IFS= read -r filename; do
 		old=$(get_serial "$against:$filename")
 		new=$(get_serial ":$filename")
 		if bc_cmp "$new" "<=" "$old"; then