add some missing newlines in error messages

index 803785d..4d2d09d 100644
@@ -357,7 +357,7 @@ drmmode_set_mode_major(xf86CrtcPtr crtc, DisplayModePtr mode,
 
 	if (ret) {
 		xf86DrvMsg(crtc->scrn->scrnIndex, X_ERROR,
-			   "failed to set mode: %s", strerror(-ret));
+			   "failed to set mode: %s\n", strerror(-ret));
 		return FALSE;
 	}
 

@@ -532,7 +532,7 @@ drmmode_gamma_set(xf86CrtcPtr crtc, CARD16 *red, CARD16 *green, CARD16 *blue,
 				  size, red, green, blue);
 	if (ret != 0) {
 		xf86DrvMsg(crtc->scrn->scrnIndex, X_ERROR,
-			   "failed to set gamma: %s", strerror(-ret));
+			   "failed to set gamma: %s\n", strerror(-ret));
 	}
 }