set proper location for libzest.so library

--- test-libversion.c.orig	Tue Feb  9 19:17:33 2021
+++ test-libversion.c	Tue Feb  9 19:18:08 2021
@@ -657,6 +657,8 @@ int main(int argc, char **argv)
         handle = dlopen("libzest.so", RTLD_LAZY);
     if(!handle)
         handle = dlopen("/opt/zyn-fusion/libzest.so", RTLD_LAZY);
+    if(!handle)
+        handle = dlopen("${LOCALBASE}/share/zynaddsubfx/libzest.so", RTLD_LAZY);
 #endif
     if(!handle) {
         printf("[ERROR] Cannot Open libzest.so\n");