Fix some whitespace issues in ChangeLog and CMakeLists.txt

Stray tab in library/CMakeLists.txt and incorrect formatting in ChangeLog.
diff --git a/ChangeLog b/ChangeLog
index 44533d2..a1d7c8b 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -4,8 +4,8 @@
 
 Features
    * Add new crypto primitives from RFC 7539: stream cipher Chacha20, one-time
-   authenticator Poly1305 and AEAD construct Chacha20-Poly1305. Contributed by
-   Daniel King (#485).
+     authenticator Poly1305 and AEAD construct Chacha20-Poly1305. Contributed by
+     Daniel King (#485).
 
 Bugfix
    * Fix the key_app_writer example which was writing a leading zero byte which
diff --git a/library/CMakeLists.txt b/library/CMakeLists.txt
index 28ce022..4aba062 100644
--- a/library/CMakeLists.txt
+++ b/library/CMakeLists.txt
@@ -109,7 +109,7 @@
 endif()
 
 if(HAIKU)
-	set(libs ${libs} network)
+    set(libs ${libs} network)
 endif(HAIKU)
 
 if(USE_PKCS11_HELPER_LIBRARY)