Add po/remove-potcdate.sin to git and EXTRA_DIST.1.17.23

This file is produced by gettextize and required by 'make dist'.

1 files changed, 19 insertions, 0 deletions

diff --git a/po/remove-potcdate.sin b/po/remove-potcdate.sin
new file mode 100644
index 00000000..2436c49e
--- /dev/null
+++ b/po/remove-potcdate.sin
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+# Sed script that remove the POT-Creation-Date line in the header entry
+# from a POT file.
+#
+# The distinction between the first and the following occurrences of the
+# pattern is achieved by looking at the hold space.
+/^"POT-Creation-Date: .*"$/{
+x
+# Test if the hold space is empty.
+s/P/P/
+ta
+# Yes it was empty. First occurrence. Remove the line.
+g
+d
+bb
+:a
+# The hold space was nonempty. Following occurrences. Do nothing.
+x
+:b
+}