pcre: small makefile fixes

- make license tag spdx conform
- drop duplicate copy commands (previous lines with asterisk match already)
- minor whitespace cleanup

Signed-off-by: Michael Heimpold <mhei@heimpold.de>
I don't think so. According to http://tldp.org/HOWTO/Program-Library-HOWTO/shared-libraries.html:

> Thus, /usr/lib/libreadline.so.3 is a fully-qualified soname, which ldconfig would set to be a symbolic link to some > realname like /usr/lib/libreadline.so.3.0. There should also be a linker name, /usr/lib/libreadline.so which could > be a symbolic link referring to /usr/lib/libreadline.so.3.

my understanding is, that such symbolic links should be present.