[docs]: Fix content and style nits.

Discuss alignment, adjustment, and margins more carefully.  Adjustment
doesn't spread output lines to "both margins" if the indentation is
nonzero.  Describe the adjustment process explicitly.  Add emphasis
distinguishing `.ce` from `.ad c`.  Drop terms "ragged-left" and
"ragged-right" from running text (but keep their concept index entries).

1 files changed, 6 insertions, 5 deletions

diff --git a/man/groff.7.man b/man/groff.7.man
index d1c4ac47e..8c50052bc 100644
--- a/man/groff.7.man
+++ b/man/groff.7.man
@@ -531,7 +531,7 @@ When filling is enabled
 (the default),
 a line may be broken at a space.
 .
-When adjustment to both margins is enabled
+When adjustment is enabled
 (the default),
 inter-word spaces are expanded until the output line reaches the
 configured length.
@@ -2335,13 +2335,13 @@ to the standard error stream and exit with failure status.
 .
 .TPx
 .REQ .ad
-Enable output line adjustment using mode stored in
+Enable output line alignment and adjustment using the mode stored in
 .BR \[rs]n[.j] .
 .
 .
 .TPx
 .REQ .ad c
-Enable output line adjustment in mode
+Enable output line alignment and adjustment in mode
 .I c
 .RI ( c =\c
 .BR b , c , l , n , r ).
@@ -4004,7 +4004,7 @@ value.
 Emit a
 .B break
 warning if the additional space inserted for each space between words in
-an output line adjusted to both margins is larger than or equal to
+an adjusted output line is greater than or equal to
 .IR N .
 .
 A negative
@@ -4559,7 +4559,8 @@ Move right one word space.
 .
 .TP
 .ESC \[ti]
-Insert an unbreakable, adjustable space.
+Insert an unbreakable,
+adjustable space.
 .
 .
 .TP