change spelling of centre to center: consistent with other man pages

and the name of the syntax elements being described; from tedu@

1 files changed, 3 insertions, 3 deletions

diff --git a/mdoc.7 b/mdoc.7
index 6a4c738d..05f13e24 100644
--- a/mdoc.7
+++ b/mdoc.7
@@ -777,7 +777,7 @@ The
 must be one of the following:
 .Bl -tag -width 13n -offset indent
 .It Fl centered
-Produce one output line from each input line, and centre-justify each line.
+Produce one output line from each input line, and center-justify each line.
 Using this display type is not recommended; many
 .Nm
 implementations render it poorly.
@@ -822,7 +822,7 @@ which has no effect;
 .Cm right ,
 which justifies to the right margin; or
 .Cm center ,
-which aligns around an imagined centre axis.
+which aligns around an imagined center axis.
 .It
 A macro invocation, which selects a predefined width
 associated with that macro.
@@ -3281,7 +3281,7 @@ The following features are unimplemented in mandoc:
 .Fl offset Cm center
 and
 .Fl offset Cm right .
-Groff does not implement centred and flush-right rendering either,
+Groff does not implement centered and flush-right rendering either,
 but produces large indentations.
 .El
 .Sh SEE ALSO