test/tiff2ps*.sh scripts: try to use POSIX only diff flags

Author: rouault

test/tiff2ps-EPS1.sh

@@ -5,4 +5,7 @@
 PSFILE=o-tiff2ps-EPS1.ps
 . ${srcdir:-.}/common.sh
 f_test_stdout "${TIFF2PS} -e -1" "${IMG_MINISWHITE_1C_1B}" "${PSFILE}"
-diff -Z -I '%%CreationDate:.*' -I '%%Title:.*' -u "${REFS}/${PSFILE}" "${PSFILE}" || exit 1
+cat "${REFS}/${PSFILE}" | grep -v '%%CreationDate:' | grep -v '%%Title:' > "${PSFILE}.ref.tmp"
+cat "${PSFILE}" | grep -v '%%CreationDate:' | grep -v '%%Title:' > "${PSFILE}.tmp"
+diff -b -u "${PSFILE}.ref.tmp" "${PSFILE}.tmp" || exit 1
+rm -f "${PSFILE}.ref.tmp" "${PSFILE}.tmp"

test/tiff2ps-PS1.sh

@@ -5,5 +5,7 @@
 PSFILE="o-tiff2ps-PS1.ps"
 . ${srcdir:-.}/common.sh
 f_test_stdout "${TIFF2PS} -a -p -1" "${IMG_MINISWHITE_1C_1B}" "${PSFILE}"
-#diff -I '%%(CreationDate|Title):.*' -u "${REFS}/${PSFILE}" "${PSFILE}" || exit 1
-diff -Z -I '%%CreationDate:.*' -I '%%Title:.*' -u "${REFS}/${PSFILE}" "${PSFILE}" || exit 1
+cat "${REFS}/${PSFILE}" | grep -v '%%CreationDate:' | grep -v '%%Title:' > "${PSFILE}.ref.tmp"
+cat "${PSFILE}" | grep -v '%%CreationDate:' | grep -v '%%Title:' > "${PSFILE}.tmp"
+diff -b -u "${PSFILE}.ref.tmp" "${PSFILE}.tmp" || exit 1
+rm -f "${PSFILE}.ref.tmp" "${PSFILE}.tmp"

test/tiff2ps-PS2.sh

@@ -5,4 +5,7 @@
 PSFILE=o-tiff2ps-PS2.ps
 . ${srcdir:-.}/common.sh
 f_test_stdout "${TIFF2PS} -a -p -2" "${IMG_MINISWHITE_1C_1B}" "${PSFILE}"
-diff -Z -I '%%CreationDate:.*' -I '%%Title:.*' -u "${REFS}/${PSFILE}" "${PSFILE}" || exit 1
+cat "${REFS}/${PSFILE}" | grep -v '%%CreationDate:' | grep -v '%%Title:' > "${PSFILE}.ref.tmp"
+cat "${PSFILE}" | grep -v '%%CreationDate:' | grep -v '%%Title:' > "${PSFILE}.tmp"
+diff -b -u "${PSFILE}.ref.tmp" "${PSFILE}.tmp" || exit 1
+rm -f "${PSFILE}.ref.tmp" "${PSFILE}.tmp"

test/tiff2ps-PS3.sh

@@ -5,4 +5,7 @@
 PSFILE=o-tiff2ps-PS3.ps
 . ${srcdir:-.}/common.sh
 f_test_stdout "${TIFF2PS} -a -p -3" "${IMG_MINISWHITE_1C_1B}" "${PSFILE}"
-diff -Z -I '%%CreationDate:.*' -I '%%Title:.*' -u "${REFS}/${PSFILE}" "${PSFILE}" || exit 1
+cat "${REFS}/${PSFILE}" | grep -v '%%CreationDate:' | grep -v '%%Title:' > "${PSFILE}.ref.tmp"
+cat "${PSFILE}" | grep -v '%%CreationDate:' | grep -v '%%Title:' > "${PSFILE}.tmp"
+diff -b -u "${PSFILE}.ref.tmp" "${PSFILE}.tmp" || exit 1
+rm -f "${PSFILE}.ref.tmp" "${PSFILE}.tmp"