configury: fix sed expression in libtool's patch for NAG compiler

Author: ggouaillardet

config/ltmain_nag_pthread.diff

@@ -9,7 +9,7 @@
 -	  tmp_inherited_linker_flags=`$ECHO "$inherited_linker_flags" | $SED 's/-framework \([^ $]*\)/\1.ltframework/g'`
 +          case "$CC" in
 +            nagfor*)
-+	      tmp_inherited_linker_flags=`$ECHO "$inherited_linker_flags" | $SED 's/-framework \([^ $]*\)/\1.ltframework/g' | $SED 's/-pthread/-Wl,-pthread'`;;
++	      tmp_inherited_linker_flags=`$ECHO "$inherited_linker_flags" | $SED 's/-framework \([^ $]*\)/\1.ltframework/g' | $SED 's/-pthread/-Wl,-pthread/g'`;;
 +            *)
 +	      tmp_inherited_linker_flags=`$ECHO "$inherited_linker_flags" | $SED 's/-framework \([^ $]*\)/\1.ltframework/g'`;;
 +          esac