nspr: Make sed more clear and remove unneeded "-r"
Quote from Rainer Fiebig via blfs-dev:
<quote>
I think that the "-r" in the first of the following seds is not
necessary and so may be a bit confusing as the next one uses just a
plain "-i":
sed -ri '/RELEASE/s//#/' pr/src/misc/Makefile.in &&
sed -i 's#$(LIBRARY) ##' config/rules.mk &&
Personally, I also find the use of "#" in the second sed somewhat
unfortunate, as it used in the first one with a totally different
meaning.
</quote>
So let's remove -r and solve the "one symbol for different meanings"
issue. Note that in '/RELEASE/s//#/' the first two '/'s have a
different meaning than others too, so use "|" instead of "/" for the
separator in sed "s" commands.
Suggested-by: Rainer Fiebig <jrf@…>
