Document limitations of trjconv -dump

Change-Id: I336791a2eeb84a773de1ea96b8e36a42ac3fc66e

diff --git a/src/gromacs/gmxana/gmx_trjconv.c b/src/gromacs/gmxana/gmx_trjconv.c
index b63707ea01467c2c0273d62e486c8ef153fad973..abd42945e987571d238a3e1c6d1f8f1a455879f5 100644 (file)
--- a/src/gromacs/gmxana/gmx_trjconv.c
+++ b/src/gromacs/gmxana/gmx_trjconv.c
@@ -721,7 +721,8 @@ int gmx_trjconv(int argc, char *argv[])
         "trajectories must be concatenated without having double frames.[PAR]",
 
         "Option [TT]-dump[tt] can be used to extract a frame at or near",
-        "one specific time from your trajectory.[PAR]",
+        "one specific time from your trajectory, but only works reliably",
+        "if the time interval between frames is uniform.[PAR]",
 
         "Option [TT]-drop[tt] reads an [TT].xvg[tt] file with times and values.",
         "When options [TT]-dropunder[tt] and/or [TT]-dropover[tt] are set,",