(test invocation): Document -r, -w, -x more carefully.

diff --git a/doc/coreutils.texi b/doc/coreutils.texi
index ec995bb7fdd6ac2d5728f93eac18d6835727f583..b213d92e017524906e607b7738479594ed2e50b4 100644 (file)
--- a/doc/coreutils.texi
+++ b/doc/coreutils.texi
@@ -9512,12 +9512,12 @@ True if @var{file} exists and has its set-group-id bit set.
 @item -k @var{file}
 @opindex -k
 @cindex sticky bit check
-True if @var{file} has its @dfn{sticky} bit set.
+True if @var{file} exists and has its @dfn{sticky} bit set.
 
 @item -r @var{file}
 @opindex -r
 @cindex readable file check
-True if @var{file} exists and is readable.
+True if @var{file} exists and read permission is granted.
 
 @item -u @var{file}
 @opindex -u
@@ -9527,12 +9527,13 @@ True if @var{file} exists and has its set-user-id bit set.
 @item -w @var{file}
 @opindex -w
 @cindex writable file check
-True if @var{file} exists and is writable.
+True if @var{file} exists and write permission is granted.
 
 @item -x @var{file}
 @opindex -x
 @cindex executable file check
-True if @var{file} exists and is executable.
+True if @var{file} exists and execute permission is granted
+(or search permission, if it is a directory).
 
 @item -O @var{file}
 @opindex -O