Fix missing name in ChangeLog

Fix another case in which a name in the commit message wasn't copied to
the ChangeLog -- sorry!

From-SVN: r272553

gcc/ChangeLog-2018

@@ -836,6 +836,8 @@
 	substituting by zero.
 
 2018-12-17  Richard Sandiford  <richard.sandiford@arm.com>
+	    Ramana Radhakrishnan  <ramana.radhakrishnan@arm.com>
+	    Kyrylo Tkachov  <kyrylo.tkachov@arm.com>
 
 	* doc/invoke.texi (-fversion-loops-for-strides): Document
 	(loop-versioning-group-size, loop-versioning-max-inner-insns)

gcc/testsuite/ChangeLog-2018

@@ -572,6 +572,8 @@
 	* gcc.target/avr/pr88253.c: New test.
 
 2018-12-17  Richard Sandiford  <richard.sandiford@arm.com>
+	    Ramana Radhakrishnan  <ramana.radhakrishnan@arm.com>
+	    Kyrylo Tkachov  <kyrylo.tkachov@arm.com>
 
 	* gcc.dg/loop-versioning-1.c: New test.
 	* gcc.dg/loop-versioning-10.c: Likewise.