X-Git-Url: https://git.donarmstrong.com/?p=samtools.git;a=blobdiff_plain;f=padding.c;h=6d97b1882a6f70ac6bca1d35f7b8217b0a02c926;hp=4061f247589dc641771b8b8da0bcba81475b49f3;hb=a46b631be3830db9bf4db53aa5e04c043a3213eb;hpb=ccb7838cb53bf0ca6917a77f7991d940057c12db

diff --git a/padding.c b/padding.c
index 4061f24..6d97b18 100644
--- a/padding.c
+++ b/padding.c
@@ -181,6 +181,7 @@ int main_pad2unpad(int argc, char *argv[])
         int result=0;
 	if (argc == 1) {
 		fprintf(stderr, "Usage: samtools depad <in.bam>\n");
+		fprintf(stderr, "\nRequires embedded reference sequences (before the reads for that reference).\n");
 		return 1;
 	}
 	in = strcmp(argv[1], "-")? bam_open(argv[1], "r") : bam_dopen(fileno(stdin), "r");