Update for Rob McMahon's masking changes.

diff --git a/doc/file.man b/doc/file.man
index 25ee5379e52c2b01c4cab7d527c257672c8c55df..50183532c22fc07609dde2a426159bd8408ca39c 100644 (file)
--- a/doc/file.man
+++ b/doc/file.man
@@ -152,6 +152,14 @@ For example,
 in an existing magic file would have to be changed to
 .br
 >10    string  language\e impress      (imPRESS data)
+.PP
+The Sun Microsystems implementation of System V compatibility
+includes a file(1) command that has some extentions.
+My version differs from Sun's only in minor ways.
+It includes the extension of the `&' operator, used as,
+for example,
+.br
+>16    long&0x7fffffff >0              not stripped
 .SH MAGIC DIRECTORY
 The magic file entries have been collected from various sources,
 mainly USENET, and contributed by various authors.
@@ -192,6 +200,9 @@ Written by Ian F. Darwin, UUCP address {utzoo | ihnp4}!darwin!ian,
 Internet address ian@sq.com,
 postal address: P.O. Box 603, Station F, Toronto, Ontario, CANADA M4Y 2L8.
 .PP
+Altered by Rob McMahon, cudcv@warwick.ac.uk, 1989, to extend the `&' operator
+from simple `x&y != 0' to `x&y op z'.
+.PP
 .I Strtok.c
 and
 .I getopt.c