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-rw-r--r--mdoc.76
1 files changed, 3 insertions, 3 deletions
diff --git a/mdoc.7 b/mdoc.7
index e2f784e2..5135f6a7 100644
--- a/mdoc.7
+++ b/mdoc.7
@@ -1850,10 +1850,10 @@ The tab cell delimiter may only be used within the
.Sx \&It
line itself; on following lines, only the
.Sx \&Ta
-macro can be used to delimit cells, and
+macro can be used to delimit cells, and portability requires that
.Sx \&Ta
-is only recognised as a macro when called by other macros,
-not as the first macro on a line.
+is called by other macros: some parsers do not recognize it when
+it appears as the first macro on a line.
.Pp
Note that quoted strings may span tab-delimited cells on an
.Sx \&It