'Avoid confusing "read prevented write" log messages' 2.

This time it's assembler.

Change-Id: Iae6369833b8046b8eda70238bb4ed0cae64269ea
diff --git a/libc/arch-arm/krait/bionic/memset.S b/libc/arch-arm/krait/bionic/memset.S
index b5a9d78..c5a9386 100644
--- a/libc/arch-arm/krait/bionic/memset.S
+++ b/libc/arch-arm/krait/bionic/memset.S
@@ -116,4 +116,4 @@
 
         .data
 error_string:
-        .string     "memset prevented write past end of buffer"
+        .string     "memset: prevented write past end of buffer"