improve tmp filenames in bin tools

Temporary files are now of the form:

```
export TMP_AB_CD=".tmp.NAME.AB_CD.$$.tmp"
```

Where `NAME` is the basename of the script, and `AB_CD` is the
part of the exported variable name after the "TMP_".

This will help avoid bugs such as that
commit c7dc9a9f6b had to fix.

Added `.tmp.*` to the top level `.gitignore` file.

Changed `bin/chk-entry.sh` VERSION from "1.1.6 2024-04-13"
to "1.1.7 2024-04-28".

Changed `bin/gen-authors.sh` VERSION from "1.9 2024-04-21"
to "1.9.1 2024-04-28".

Changed `bin/gen-location.sh` VERSION from "1.4 2024-04-21"
to "1.4.1 2024-04-28".

Changed `bin/gen-other-html.sh` VERSION from "1.2.2 2024-04-21"
to "1.2.3 2024-04-28".

Changed `bin/gen-sitemap.sh` VERSION from "1.3.7 2024-04-14"
to "1.3.8 2024-04-28".

Changed `bin/gen-status.sh` VERSION from "1.5 2024-04-22"
to "1.5.1 2024-04-28".

Changed `bin/gen-years.sh` VERSION from "1.3 2024-04-21"
to "1.3.1 2024-04-28".

Changed `bin/md2html.sh` VERSION from "1.5 2024-04-20"
to "1.5.1 2024-04-28".

Changed `bin/output-index-author.sh` VERSION from "1.7 2024-04-15"
to "1.7.1 2024-04-28".

Changed `bin/output-index-inventory.sh` VERSION from "1.4 2024-04-21"
to "1.4.1 2024-04-28".

Changed `bin/output-year-index.sh` VERSION from "1.4 2024-04-21"
to "1.4.1 2024-04-28".

Changed `bin/sort.gitignore.sh` VERSION from "1.1.6 2024-04-13"
to "1.1.7 2024-04-28".

Changed `bin/status2html.sh` VERSION from "1.4 2024-04-18"
to "1.4.1 2024-04-28".

Changed `bin/tar-entry.sh` VERSION from "1.3.5 2024-04-13"
to "1.3.6 2024-04-28".

Changed `bin/tar-year.sh` VERSION from "1.2.3 2024-04-13"
to "1.2.4 2024-04-28".

Ran `make www` to perform test the above under macOS.

bin/tar-entry.sh

@@ -83,7 +83,7 @@ shopt -s globstar	# enable ** to match all files and zero or more directories an
 
 # set variables referenced in the usage message
 #
-export VERSION="1.3.5 2024-04-13"
+export VERSION="1.3.6 2024-04-28"
 NAME=$(basename "$0")
 export NAME
 export V_FLAG=0
@@ -483,7 +483,7 @@ fi
 
 # create a temporary file manifest list
 #
-export TMP_MANIFEST_LIST=".$NAME.$$.manifest.list"
+export TMP_MANIFEST_LIST=".tmp.$NAME.MANIFEST_LIST.$$.tmp"
 if [[ $V_FLAG -ge 3 ]]; then
     echo  "$0: debug[3]: temporary file manifest list: $TMP_MANIFEST_LIST" 1>&2
 fi
@@ -505,7 +505,7 @@ fi
 
 # create a temporary sort list of files to tar
 #
-export TMP_FILES_TO_TAR=".$NAME.$$.tar.list"
+export TMP_FILES_TO_TAR=".tmp.$NAME.FILES_TO_TAR.$$.tmp"
 if [[ $V_FLAG -ge 3 ]]; then
     echo  "$0: debug[3]: temporary list of files to tar: $TMP_FILES_TO_TAR" 1>&2
 fi
@@ -530,7 +530,7 @@ fi
 # It is a pain to set the EXIT_CODE deep inside a loop, so we write the EXIT_CODE into a file
 # and read the file (setting EXIT_CODE again) after the loop.  A hack, but good enough for our needs.
 #
-export TMP_EXIT_CODE=".$NAME.$$.exit.code"
+export TMP_EXIT_CODE=".tmp.$NAME.EXIT_CODE.$$.tmp"
 if [[ $V_FLAG -ge 3 ]]; then
     echo  "$0: debug[3]: temporary exit code: $TMP_EXIT_CODE" 1>&2
 fi
@@ -615,7 +615,7 @@ fi
 
 # create a temporary list of files found in the tarball
 #
-export TMP_TARBALL_LIST=".$NAME.$$.tarball.list"
+export TMP_TARBALL_LIST=".tmp.$NAME.TARBALL_LIST.$$.tmp"
 if [[ $V_FLAG -ge 3 ]]; then
     echo  "$0: debug[3]: temporary of files in the tarball: $TARBALL: $TMP_TARBALL_LIST" 1>&2
 fi
@@ -637,7 +637,7 @@ fi
 
 # create a temporary tarball
 #
-export TMP_TARBALL=".$NAME.$$.tar.bz2"
+export TMP_TARBALL=".tmp.$NAME.TARBALL.$$.tmp"
 if [[ $V_FLAG -ge 3 ]]; then
     echo  "$0: debug[3]: temporary tarball: $TMP_TARBALL" 1>&2
 fi