Fix warning about ignoring system() return value in testlo.c
Fix warning about ignoring system() return value in testlo.c

tuscland/liblo,johne53/MB3Liblo,johne53/MB3Liblo,tuscland/liblo,kneitinger/liblo,johne53/MB3Liblo,kneitinger/liblo,radarsat1/liblo,umlaeute/liblo,island-org/liblo,fsateler/liblo,umlaeute/liblo,radarsat1/liblo,johne53/MB3Liblo,island-org/liblo,island-org/liblo,tuscland/liblo,radarsat1/liblo,fsateler/liblo,fsateler/liblo,umlaeute/liblo,kneitinger/liblo