Stop tank / gas / consumption info from changing info_frame size

Simply set it to an empty string with TWO lines when there is nothing to
display

Signed-off-by: Dirk Hohndel <dirk@hohndel.org>

1 files changed, 1 insertions, 1 deletions

diff --git a/profile.c b/profile.c
index 1fa989dd1..0add26d08 100644
--- a/profile.c
+++ b/profile.c
@@ -504,7 +504,7 @@ static void plot_info(struct dive *dive, struct graphics_context *gc)
 
 	airuse = calculate_airuse(dive);
 	if (!airuse) {
-		update_air_info("");
+		update_air_info("          \n          ");
 		return;
 	}
 	switch (output_units.volume) {