fec: Fix comment to invert_mat().

diff --git a/fec.c b/fec.c
index f3e68454941e702ff7cb9ca78ca9a3b749998086..fe02487dee71c405e69892deb2e601a518e00bdc 100644 (file)
--- a/fec.c
+++ b/fec.c
@@ -214,7 +214,7 @@ static void matmul(unsigned char *a, unsigned char *b, unsigned char *c,
  * Compute the inverse of a matrix.
  *
  * k is the size of the matrix 'src' (Gauss-Jordan, adapted from Numerical
- * Recipes in C). Returns -1 if 'src' is singular.
+ * Recipes in C). Returns negative on errors.
  */
 static int invert_mat(unsigned char *src, int k)
 {