1 files changed, 12 insertions, 12 deletions
diff --git a/man/groff_out.man b/man/groff_out.man
index c94f04402..9ad5389ba 100644
--- a/man/groff_out.man
+++ b/man/groff_out.man
@@ -5,10 +5,11 @@
 .el .ds ic \^
 .TH GROFF_OUT @MAN5EXT@ "@MDATE@" "Groff Version @VERSION@"
 .SH NAME
-groff_out \- format of groff output
+groff_out \- groff intermediate output format
 .SH DESCRIPTION
-The output format used by groff is very similar to that used
-by device-independent troff. Only the differences are documented
+This manual page describes the format output by GNU troff.
+The output format used by GNU troff is very similar to that used
+by Unix device-independent troff. Only the differences are documented
 here.
 .LP
 The argument to the
@@ -34,7 +35,7 @@ The first three output commands are guaranteed to be:
 .LP
 If the
 .B tcommand
-line is present in the DESC file, gtroff will use the following
+line is present in the DESC file, troff will use the following
 two commands
 .TP
 .BI t xxx
@@ -70,7 +71,7 @@ for drivers to search special fonts to find a character.
 The
 .B D
 drawing command has been extended.
-These extensions will only be used by gpic
+These extensions will only be used by GNU pic if the
 .B \-x
 option is given.
 .TP
@@ -114,7 +115,7 @@ for $i = 1 ,..., n+1$, the
 vertex at the current position 
 $+ sum from j=1 to i-1 ( dx sub j , dy sub j )$.
 At the moment,
-gpic only uses this command to generate triangles and rectangles.
+GNU pic only uses this command to generate triangles and rectangles.
 .TP
 \fBDP\fR $dx sub 1$ $dy sub 1$ $dx sub 2$ $dy sub 2$ $...$ $dx sub n$ $dy sub n$\en
 Like
@@ -125,7 +126,7 @@ but draw a solid rather than outlined polygon.
 Set the current line thickness to
 .I n
 machine units.
-Traditionally troff drivers use a line thickness proportional to the current
+Traditionally Unix troff drivers use a line thickness proportional to the current
 point size; drivers should continue to do this if no
 .B Dt
 command has been given, or if a
@@ -138,7 +139,7 @@ selects the smallest available line thickness.
 .LP
 A difficulty arises in how the current position should be changed after
 the execution of these commands.
-This is not of great importance since the code generated by gpic
+This is not of great importance since the code generated by GNU pic
 does not depend on this.
 Given a drawing command of the form
 .IP
@@ -153,7 +154,7 @@ is not one of
 .B a
 or
 .BR ~ ,
-troff will treat each of the $x sub i$ as a horizontal quantity,
+Unix troff will treat each of the $x sub i$ as a horizontal quantity,
 and each of the $y sub i$ as a vertical quantity and will assume that
 the width of the drawn object is $sum from i=1 to n x sub i$,
 and that the height is $sum from i=1 to n y sub i$.
@@ -167,7 +168,7 @@ command in a \ew escape sequence.)
 This rule also holds for all the original drawing commands
 with the exception of
 .BR De .
-For the sake of compatibility gtroff also follows this rule,
+For the sake of compatibility GNU troff also follows this rule,
 even though it produces an ugly result in the case of the
 .BR Df ,
 .BR Dt ,
@@ -188,8 +189,7 @@ There is a continuation convention which permits the argument to the
 command to contain newlines:
 when outputting the argument to the
 .B x\ X
-command,
-.B gtroff
+command, GNU troff
 will follow each newline in the argument with a
 .B +
 character