diff -up diffstat-1.55/diffstat.c.help diffstat-1.55/diffstat.c
--- diffstat-1.55/diffstat.c.help	2012-08-29 17:23:50.647274864 +0100
+++ diffstat-1.55/diffstat.c	2012-08-29 17:26:38.089877925 +0100
@@ -2190,7 +2190,9 @@ usage(FILE *fp)
 	"If no filename is given on the command line, reads from standard input.",
 	"",
 	"Options:",
+	"  -b      ignore lines matching \"Binary files XXX and YYY differ\"",
 	"  -c      prefix each line with comment (#)",
+	"  -C      add SGR color escape sequences to highlight the histogram",
 #if OPT_TRACE
 	"  -d      debug - prints a lot of information",
 #endif
@@ -2208,6 +2210,7 @@ usage(FILE *fp)
 	"  -q      suppress the \"0 files changed\" message for empty diffs",
 	"  -r NUM  specify rounding for histogram (0=none, 1=simple, 2=adjusted)",
 	"  -R      assume patch was created with old and new files swapped",
+	"  -s      show only the summary line",
 	"  -S PATH specify location of original files, use for unchanged-count",
 	"  -t      print a table (comma-separated-values) rather than histogram",
 	"  -u      do not sort the input list",