libsvn_client.pc should set -lsvn_client-1 instead of -lsvn_client

Bug: libsvn_client.pc should set -lsvn_client-1 instead of -lsvn_client
Verified with subversion-1.12.2
See also: https://bugs.gentoo.org/686148

pkg-config requests linking to libsvn_client ...

# pkg-config --libs libsvn_client
-lsvn_client -lapr-1 -luuid -lrt -lcrypt -lpthread -ldl

... but what is installed is libsvn_client-1:

# qlist -eo subversion |grep libsvn_client
/usr/lib64/libsvn_client-1.so.0.0.0
/usr/share/pkgconfig/libsvn_client.pc

-- 
Andreas K. Hüttel
dilfridge_at_gentoo.org
Gentoo Linux developer 
(council, qa, toolchain, base-system, perl, libreoffice)