libc: clean up ARM64 copyright notices

Test: None needed

Change-Id: I3626a92329e954f67bada6ed73f3033225bbfef5
diff --git a/libc/arch-arm64/generic/bionic/strchr.S b/libc/arch-arm64/generic/bionic/strchr.S
index b54106d..2db0c76 100644
--- a/libc/arch-arm64/generic/bionic/strchr.S
+++ b/libc/arch-arm64/generic/bionic/strchr.S
@@ -1,6 +1,5 @@
 /*
-   strchr - find a character in a string
-
+ *
    Copyright (c) 2014, ARM Limited
    All rights Reserved.
    Copyright (c) 2014, Linaro Ltd.