usage

1 files changed, 3 insertions, 3 deletions

diff --git a/src/pnmcurve.c b/src/pnmcurve.c
index 49adad2..4ddbc5c 100644
--- a/src/pnmcurve.c
+++ b/src/pnmcurve.c
@@ -31,9 +31,9 @@ usage() {
                 " -g apply curve to green channel.\n"
                 " -b apply curve to blue channel.\n"
 				" -c <curve> curve to apply. <curve> must be\n"
-				" of the form x1:y1,x2,y2,x3,y3 where xi,yi are\n"
-				" control points of a cubic spline curve.\n"
-				" xi,yi must be in the range [0.0,1.0].\n");
+				"    of the form x1:y1,x2:y2,x3:y3 where xi:yi are\n"
+				"    control points of a cubic spline curve.\n"
+				"    xi,yi must be in the range [0.0,1.0].\n");
 }
 
 int