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[PATCH] Fix zero_ext documentation

This patch fixes the documentation for the zero_ext bytecode description.

It removes parts that seemed like a copy/paste from ext, since zero_ext
zeros the bits to the left.


	* agentexpr.texi (byte): Fix zero_ext description.
 gdb/doc/agentexpr.texi | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/gdb/doc/agentexpr.texi b/gdb/doc/agentexpr.texi
index 731234d..ade7638 100644
--- a/gdb/doc/agentexpr.texi
+++ b/gdb/doc/agentexpr.texi
@@ -353,8 +353,7 @@ byte unsigned integer following the @code{ext} bytecode.
 @item @code{zero_ext} (0x2a) @var{n}: @var{a} @result{} @var{a}, zero-extended from @var{n} bits
 Pop an unsigned value from the stack; zero all but the bottom @var{n}
-bits.  This means that all bits to the left of bit @var{n-1} (where the
-least significant bit is bit 0) are set to the value of bit @var{n-1}.
 The number of source bits to preserve, @var{n}, is encoded as a single
 byte unsigned integer following the @code{zero_ext} bytecode.

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