Fix copy-paste typo in -data-write-memory-bytes doc

* gdb.texinfo (GDB/MI Data Manipulation): Fix copy-paste typo in
	-data-write-memory-bytes.

gdb/doc/ChangeLog

@@ -1,3 +1,8 @@
+2015-03-26  Simon Marchi  <simon.marchi@ericsson.com>
+
+	* gdb.texinfo (GDB/MI Data Manipulation): Fix copy-paste typo in
+	-data-write-memory-bytes.
+
 2015-03-24  Pedro Alves  <palves@redhat.com>
 
 	* gdb.texinfo (test_step) <set scheduler-locking step>: No longer

gdb/doc/gdb.texinfo

@@ -29975,7 +29975,7 @@ where:
 @table @samp
 @item @var{address}
 An expression specifying the address of the first memory word to be
-read.  Complex expressions containing embedded white space should be
+written.  Complex expressions containing embedded white space should be
 quoted using the C convention.
 
 @item @var{contents}