Eliminate duplicate words.

[ywkaras]

In documentation and code comments and log messages.

[ywkaras]

cat $(findsrc) | tr ' ' '\n' | grep '^[A-Za-z][A-Za-z]*$' | sort -u | grep -v '^long$' | \
while read W; do grep  -e " $W $W " -e "^$W $W " -e " $W $W$" -e "^$W $W$" $(findsrc) ; done >| /tmp/yy

cat $(find . -name \*.rst ) | tr ' ' '\n' | grep '^[A-Za-z][A-Za-z]*$' | sort -u | \
while read W; do grep  -e " $W $W " -e "^$W $W " -e " $W $W$" -e "^$W $W$" $(find . -name \*.rst ) ; done >> /tmp/yy

[bneradt]

I read through the changes. Patch looks good to me.

[maskit]

Looks good. I didn't see "had had" which can be valid.

[zwoop]

Cherry-picked to v9.2.x