Use ‘export VAR=VAL’ syntax

This is OK now that we assume POSIX.2-1992.
* Makefile (SETUP_TAR, UTF8_LOCALE_MISSING):
* tzselect.ksh (line):
* workman.sh (GROFF_NO_SGR):
Use ‘export VAR=VAL’ instead of ‘VAR=VAL; export VAR’.

Author: eggert

Makefile

@@ -543,7 +543,7 @@ GNUTARFLAGS= --format=pax --pax-option=delete=atime,delete=ctime \
   --numeric-owner --owner=0 --group=0 \
   --mode=go+u,go-w --sort=name
 SETUP_TAR= \
-  LC_ALL=C && export LC_ALL && \
+  export LC_ALL=C && \
   if tar $(GNUTARFLAGS) --version >/dev/null 2>&1; then \
     TAR='tar $(GNUTARFLAGS)'; \
   else \
@@ -874,7 +874,7 @@ UTF8_LOCALE_MISSING = \
   { test ! '$(UTF8_LOCALE)' \
     || ! printf 'A\304\200B\n' \
          | LC_ALL='$(UTF8_LOCALE)' grep -q '^A.B$$' >/dev/null 2>&1 \
-    || { LC_ALL='$(UTF8_LOCALE)'; export LC_ALL; false; }; }
+    || { export LC_ALL='$(UTF8_LOCALE)'; false; }; }
 
 character-set.ck: $(ENCHILADA)
 	$(UTF8_LOCALE_MISSING) || { \

tzselect.ksh

@@ -785,7 +785,7 @@ done
 
 case $SHELL in
 *csh) file=.login line="setenv TZ '$tz'";;
-*)    file=.profile line="TZ='$tz'; export TZ"
+*)    file=.profile line="export TZ='$tz'"
 esac
 
 test -t 1 && say >&2 "

workman.sh

@@ -7,8 +7,7 @@
 if (type nroff && type perl) >/dev/null 2>&1; then
 
   # Tell groff not to emit SGR escape sequences (ANSI color escapes).
-  GROFF_NO_SGR=1
-  export GROFF_NO_SGR
+  export GROFF_NO_SGR=1
 
   echo ".am TH
 .hy 0