[PATCH] jffs2dump: rewrite --help output to be more suitable for help2man

[Timo Lindfors]

From: Timo Juhani Lindfors <timo.lindfors at iki.fi>

$ help2man /usr/sbin/jffs2dump | man /dev/stdin

currently creates badly formatted output like

-b          --bigendian                 image is big endian
-l          --littleendian              image   is   little
endian  -c          --content                   dump  image
contents  -e  fname    --endianconvert=fname        convert
image endianness, output to file fname -r         --recalc-

This patch modifies the --help output for jffs2dump to be more
suitable for help2man and thus makes it possible to easily create
manual pages that stay up-to-date.

Signed-off-by: Timo Juhani Lindfors <timo.lindfors at iki.fi>
---
 jffs2dump.c |   25 ++++++++++++-------------
 1 files changed, 12 insertions(+), 13 deletions(-)

diff --git a/jffs2dump.c b/jffs2dump.c
index c5a99df..2802682 100644
--- a/jffs2dump.c
+++ b/jffs2dump.c
@@ -52,19 +52,18 @@ char	*data;		// image data
 
 void display_help (void)
 {
-	printf("Usage: dumpjffs2 [OPTION] INPUTFILE\n"
-			"Dumps the contents of a binary JFFS2 image.\n"
-			"\n"
-			"           --help     	              display this help and exit\n"
-			"           --version  	              output version information and exit\n"
-			"-b         --bigendian	              image is big endian\n"
-			"-l         --littleendian             image is little endian\n"
-			"-c         --content  	              dump image contents\n"
-			"-e fname   --endianconvert=fname      convert image endianness, output to file fname\n"
-			"-r         --recalccrc                recalc name and data crc on endian conversion\n"
-			"-d len     --datsize=len              size of data chunks, when oob data in binary image (NAND only)\n"
-			"-o len     --oobsize=len              size of oob data chunk in binary image (NAND only)\n"
-			"-v         --verbose		      verbose output\n");
+	printf("Usage: " PROGRAM " [OPTION]... INPUTFILE\n"
+	       "Dump the contents of a binary JFFS2 image.\n\n"
+	       "     --help                   display this help and exit\n"
+	       "     --version                display version information and exit\n"
+	       " -b, --bigendian              image is big endian\n"
+	       " -l, --littleendian           image is little endian\n"
+	       " -c, --content                dump image contents\n"
+	       " -e, --endianconvert=FNAME    convert image endianness, output to file fname\n"
+	       " -r, --recalccrc              recalc name and data crc on endian conversion\n"
+	       " -d, --datsize=LEN            size of data chunks, when oob data in binary image (NAND only)\n"
+	       " -o, --oobsize=LEN            size of oob data chunk in binary image (NAND only)\n"
+	       " -v, --verbose                verbose output\n");
 	exit(0);
 }
 
---

If this patch looks ok, I'd be willing to write similar patches for at
least nandread, flash_erase and flash_eraseall tools that I use
regularly myself.

best regards,
Timo Lindfors