rs6000.opt (mwarn-cell-microcode): Improve option description.

	* config/rs6000/rs6000.opt (mwarn-cell-microcode): Improve option
	description.

From-SVN: r141625

gcc/ChangeLog

+2008-11-06  Ben Elliston  <bje@au.ibm.com>
+
+	* config/rs6000/rs6000.opt (mwarn-cell-microcode): Improve option
+	description.
+
 2008-11-05  Hans-Peter Nilsson  <hp@axis.com>
 
 	PR target/38016

gcc/config/rs6000/rs6000.opt

@@ -239,7 +239,7 @@ Generate Cell microcode
 
 mwarn-cell-microcode
 Target Var(rs6000_warn_cell_microcode) Init(0) Warning
-Emitting warning when a Cell microcode is emitted
+Warn when a Cell microcoded instruction is emitted
 
 mwarn-altivec-long
 Target Var(rs6000_warn_altivec_long) Init(1)