fix OBS compilation after perl version up

perl was upgraded from version 5.26.1 to 5.28.1 in
8d4fa263

component/slapos/obs.cfg

@@ -42,23 +42,23 @@ make-options +=
   DESTDIR=${buildout:destdir}
 
 environment +=
-  PERL5LIB=${perl:location}/lib/5.26.1/
+  PERL5LIB=${perl:location}/lib/5.28.1/
 
 [intltool]
 environment +=
-  PERL5LIB=${perl:location}/lib/5.26.1/
+  PERL5LIB=${perl:location}/lib/5.28.1/
 
 [autoconf]
 environment +=
-  PERL5LIB=${perl:location}/lib/5.26.1/
+  PERL5LIB=${perl:location}/lib/5.28.1/
 
 [automake]
 environment +=
-  PERL5LIB=${perl:location}/lib/5.26.1/
+  PERL5LIB=${perl:location}/lib/5.28.1/
 
 [firewalld]
 environment +=
-  PERL5LIB=${perl:location}/lib/5.26.1/
+  PERL5LIB=${perl:location}/lib/5.28.1/
 
 
 [dbus]
@@ -99,7 +99,7 @@ make-options +=
   DESTDIR=${buildout:destdir}
  
 environment =
-  PERL5LIB=${perl:location}/lib/5.26.1/
+  PERL5LIB=${perl:location}/lib/5.28.1/
   PERL=${perl:location}/bin/perl
 
 [bison-go]
@@ -124,7 +124,7 @@ environment +=
   LDFLAGS=-L${glib:location}/lib -Wl,-rpath=${glib:location}/lib -L${libffi:location}/lib -Wl,-rpath=${libffi:location}/lib -lffi -L${python2.7:location}/lib
   ACLOCAL_PATH=${pkgconfig:location}/share/aclocal:${gettext:location}/share/aclocal:${libtool:location}/share/aclocal:${glib:location}/share/aclocal:${intltool:location}/share/aclocal
   M4=${m4:location}/bin/m4
-  PERL5LIB=${perl:location}/lib/5.26.1/
+  PERL5LIB=${perl:location}/lib/5.28.1/
 
 post-install = 
   sed -i 's#!${python2.7:location}/bin/python2.7#!/opt/slapos/parts/python2.7/bin/python2.7#' ${python2.7:location}/bin/python-config
@@ -157,14 +157,14 @@ environment +=
 
 
 [perl-CPAN-package]
-perl-PERL5LIB=${perl:location}/lib/5.26.1/
+perl-PERL5LIB=${perl:location}/lib/5.28.1/
 
 pre-configure =
-  sed -i "s#'/opt/slapos/parts/perl#'${perl:location}#" ${perl:location}/lib/5.26.1/*-linux-thread-multi/Config.pm
-  sed -i "s#'/opt/slapos/parts/site_perl#'${buildout:destdir}/parts/site_perl#" ${perl:location}/lib/5.26.1/*-linux-thread-multi/Config.pm
+  sed -i "s#'/opt/slapos/parts/perl#'${perl:location}#" ${perl:location}/lib/5.28.1/*-linux-thread-multi/Config.pm
+  sed -i "s#'/opt/slapos/parts/site_perl#'${buildout:destdir}/parts/site_perl#" ${perl:location}/lib/5.28.1/*-linux-thread-multi/Config.pm
 post-install =
-  sed -i "s#'${perl:location}#'/opt/slapos/parts/perl#" ${perl:location}/lib/5.26.1/*-linux-thread-multi/Config.pm
-  sed -i "s#'${buildout:destdir}/parts/site_perl#'/opt/slapos/parts/site_perl#" ${perl:location}/lib/5.26.1/*-linux-thread-multi/Config.pm
+  sed -i "s#'${perl:location}#'/opt/slapos/parts/perl#" ${perl:location}/lib/5.28.1/*-linux-thread-multi/Config.pm
+  sed -i "s#'${buildout:destdir}/parts/site_perl#'/opt/slapos/parts/site_perl#" ${perl:location}/lib/5.28.1/*-linux-thread-multi/Config.pm
 
 [perl]
 location = ${buildout:destdir}/parts/perl