fix typo in comment

git-svn-id: http://svn.code.sf.net/p/netpbm/code/trunk@3599 9d0c8265-081b-0410-96cb-a4ca84ce46f8

1 files changed, 1 insertions, 1 deletions

diff --git a/converter/other/pamtopng.c b/converter/other/pamtopng.c
index a323844f..68d4055d 100644
--- a/converter/other/pamtopng.c
+++ b/converter/other/pamtopng.c
@@ -921,7 +921,7 @@ pamtopng(FILE *             const ifP,
 
     if (cmdline.interlace) {
         /* Libpng will expect us to provide pixels in interlaced sequence
-           if we write row-by-row, and that is much to difficult, so we
+           if we write row-by-row, and that is much too difficult, so we
            do whole-image-at-once and let Libpng do the work.
         */
         writeRasterWholeImg(&pam, pngxP, pnmBitDepth);