FS-3790 --resolve

Changed from using putenv to setenv like the other one

src/mod/applications/mod_ladspa/mod_ladspa.c

@@ -634,6 +634,8 @@ SWITCH_MODULE_LOAD_FUNCTION(mod_ladspa_load)
 			setenv("LADSPA_PATH", "/usr/lib64/ladspa/:/usr/local/lib/ladspa", 1);
 		} else if (switch_directory_exists("/usr/lib/ladspa/", pool) == SWITCH_STATUS_SUCCESS) {
 			setenv("LADSPA_PATH", "/usr/lib/ladspa/:/usr/local/lib/ladspa", 1);
+		} else if (switch_directory_exists("/usr/local/lib/ladspa/", pool) == SWITCH_STATUS_SUCCESS) {
+			setenv("LADSPA_PATH", "/usr/local/lib/ladspa", 1);
 		}
 	}