Document -rgb option in djpeg man page;  "gray-scale"="grayscale"


git-svn-id: svn+ssh://svn.code.sf.net/p/libjpeg-turbo/code/branches/1.3.x@1293 632fc199-4ca6-4c93-a231-07263d6284db
diff --git a/djpeg.1 b/djpeg.1
index 37646ee..9b040ae 100644
--- a/djpeg.1
+++ b/djpeg.1
@@ -55,11 +55,14 @@
 equivalent to \fB\-dct fast \-nosmooth \-onepass \-dither ordered\fR.
 .TP
 .B \-grayscale
-Force gray-scale output even if JPEG file is color.  Useful for viewing on
+Force grayscale output even if JPEG file is color.  Useful for viewing on
 monochrome displays; also,
 .B djpeg
 runs noticeably faster in this mode.
 .TP
+.B \-rgb
+Force RGB output even if JPEG file is grayscale.
+.TP
 .BI \-scale " M/N"
 Scale the output image by a factor M/N.  Currently the scale factor must be
 M/8, where M is an integer between 1 and 16 inclusive, or any reduced fraction
@@ -74,7 +77,7 @@
 .B \-colors
 or
 .B \-grayscale
-is specified, or if the JPEG file is gray-scale; otherwise, 24-bit full-color
+is specified, or if the JPEG file is grayscale; otherwise, 24-bit full-color
 format is emitted.
 .TP
 .B \-gif
@@ -88,12 +91,12 @@
 .B \-colors
 or
 .B \-grayscale
-is specified, or if the JPEG file is gray-scale; otherwise, 24-bit full-color
+is specified, or if the JPEG file is grayscale; otherwise, 24-bit full-color
 format is emitted.
 .TP
 .B \-pnm
 Select PBMPLUS (PPM/PGM) output format (this is the default format).
-PGM is emitted if the JPEG file is gray-scale or if
+PGM is emitted if the JPEG file is grayscale or if
 .B \-grayscale
 is specified; otherwise PPM is emitted.
 .TP
@@ -101,8 +104,8 @@
 Select RLE output format.  (Requires URT library.)
 .TP
 .B \-targa
-Select Targa output format.  Gray-scale format is emitted if the JPEG file is
-gray-scale or if
+Select Targa output format.  Grayscale format is emitted if the JPEG file is
+grayscale or if
 .B \-grayscale
 is specified; otherwise, colormapped format is emitted if
 .B \-colors
@@ -174,7 +177,7 @@
 is ignored unless you also say
 .B \-colors
 .IR N .
-Also, the one-pass method is always used for gray-scale output (the two-pass
+Also, the one-pass method is always used for grayscale output (the two-pass
 method is no improvement then).
 .TP
 .BI \-maxmemory " N"