package/libunwind: replace utf-8 space by ascii character

Replace utf-8 NO-BREAK-SPACE (c2 a0) in comment line by simple
ascii space character.

Signed-off-by: Peter Seiderer <ps.report@gmx.net>
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>

package/libunwind/libunwind.hash

@@ -1,5 +1,5 @@
 # Locally calculated after checking pgp signature
 sha256 43997a3939b6ccdf2f669b50fdb8a4d3205374728c2923ddc2354c65260214f8  libunwind-1.3.1.tar.gz
 
-# Hash for license file
+# Hash for license file
 sha256 6a0dbbdaec2b3136b7bf045586f4212bdf74e7af688bf9dfe9154607cf5ec156  COPYING