driver_nmea0183 and more: Decode $PSRFEPE, and epd.

Turns out epd also came from SiRF, but never made it to TPV.
Regressions changed to show new epd data.

1 files changed, 3 insertions, 0 deletions

diff --git a/gpsutils.c b/gpsutils.c
index caef04aa..73c804ca 100644
--- a/gpsutils.c
+++ b/gpsutils.c
@@ -332,6 +332,9 @@ void gps_merge_fix(struct gps_fix_t *to,
 	to->epx = from->epx;
 	to->epy = from->epy;
     }
+    if (0 != isfinite(from->epd)) {
+	to->epd = from->epd;
+    }
     if ((transfer & VERR_SET) != 0)
 	to->epv = from->epv;
     if ((transfer & SPEEDERR_SET) != 0)