[Fix] Small bug fixes.

src/space.c

@@ -219,6 +219,7 @@ char** space_getFactionPlanet(int* nplanets, int* factions, int nfactions) {
             tmp = realloc(tmp, sizeof(char*) * mtmp);
           }
           tmp[ntmp-1] = planet->name;
+          break; // No need to check all factions.
         }
     }
   (*nplanets) = ntmp;

src/spfx.c

@@ -147,7 +147,7 @@ void spfx_clear(void) {
 
 static void spfx_destroy(SPFX* layer, int* nlayer, int spfx) {
   (*nlayer)--;
-  memmove(&layer[spfx], &layer[spfx+1], (*nlayer-spfx-1)*sizeof(SPFX));
+  memmove(&layer[spfx], &layer[spfx+1], (*nlayer-spfx)*sizeof(SPFX));
 }
 
 void spfx_update(const double dt) {