Remove non-ascii & unprintable characters

These non-ascii & unprintable characters aren't needed.

Change-Id: I129f729f66d6a692de729d76971f7deb7a19c254
Signed-off-by: Martin Roth <martinroth@google.com>
Reviewed-on: https://review.coreboot.org/15977
Tested-by: build bot (Jenkins)
Reviewed-by: Omar Pakker
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
diff --git a/src/arch/x86/acpigen.c b/src/arch/x86/acpigen.c
index d37568c..915faac 100644
--- a/src/arch/x86/acpigen.c
+++ b/src/arch/x86/acpigen.c
@@ -222,9 +222,9 @@
 
 /*
  * The naming conventions for ACPI namespace names are a bit tricky as
- * each element has to be 4 chars wide (»All names are a fixed 32 bits.«)
- * and »By convention, when an ASL compiler pads a name shorter than 4
- * characters, it is done so with trailing underscores (‘_’).«.
+ * each element has to be 4 chars wide ("All names are a fixed 32 bits.")
+ * and "By convention, when an ASL compiler pads a name shorter than 4
+ * characters, it is done so with trailing underscores ('_')".
  *
  * Check sections 5.3, 18.2.2 and 18.4 of ACPI spec 3.0 for details.
  */