use uniq with LC_ALL=C

We make sure that when we uniq, we sort with `LC_ALL=C` as in:

> LC_ALL=C uniq ...

Changed `bin/csv2entry.sh` VERSION from "1.2.1 2024-08-17"
to "1.2.2 2024-08-17".

Performed `make csv2entry` to test the above under macOS.

bin/csv2entry.sh

@@ -142,7 +142,7 @@ shopt -s lastpipe	# explicitly run the last command of the pipe line in the curr
 
 # set variables referenced in the usage message
 #
-export VERSION="1.2.1 2024-08-17"
+export VERSION="1.2.2 2024-08-17"
 NAME=$(basename "$0")
 export NAME
 export V_FLAG=0
@@ -1311,9 +1311,11 @@ fi
 # form a 2nd YYYY_DIR inventory from author_wins.csv
 #
 if [[ $V_FLAG -ge 5 ]]; then
-    echo "$0: debug[5]: about to: sed .. $AUTHOR_WINS_CSV | LC_ALL=C sort -t/ -d | uniq > $TMP_2ND_YYYY_DIR_INV" 1>&2
+    echo "$0: debug[5]: about to: sed .. $AUTHOR_WINS_CSV | LC_ALL=C sort -t/ -d | LC_ALL=C uniq > $TMP_2ND_YYYY_DIR_INV" 1>&2
 fi
-sed -e '/^#/d' -e 's/^[^,]*,//' -e 's/,/\n/g' -e 's/_/\//g' "$AUTHOR_WINS_CSV" | LC_ALL=C sort -t/ -d | uniq > "$TMP_2ND_YYYY_DIR_INV"
+sed -e '/^#/d' -e 's/^[^,]*,//' -e 's/,/\n/g' -e 's/_/\//g' "$AUTHOR_WINS_CSV" |
+  LC_ALL=C sort -t/ -d |
+  LC_ALL=C uniq > "$TMP_2ND_YYYY_DIR_INV"
 status_codes=("${PIPESTATUS[@]}")
 if [[ ${status_codes[*]} =~ [1-9] ]]; then
    echo "$0: ERROR: sed .. $AUTHOR_WINS_CSV | LC_ALL=C sort -t/ -d > $TMP_2ND_YYYY_DIR_INV failed," \