logging: remove obj character

Remove OBJECT REPLACEMENT CHARACTER U+FFFC from warning log messages.

Signed-off-by: Piotr Golyzniak <piotr.golyzniak@nordicsemi.no>

subsys/logging/CMakeLists.txt

diff --git a/subsys/logging/CMakeLists.txt b/subsys/logging/CMakeLists.txt
index a71f27b..4617ec9 100644
--- a/subsys/logging/CMakeLists.txt
+++ b/subsys/logging/CMakeLists.txt
@@ -110,12 +110,12 @@
 
 if(CONFIG_LOG2_MODE_IMMEDIATE OR CONFIG_LOG2_MODE_DEFERRED)
   message(WARNING "CONFIG_LOG2_MODE_{IMMEDIATE,DEFERRED} is deprecated. Please \
-                  use CONFIG_LOG_MODE_{IMMEDIATE,DEFERRED} which defaults to v2"
-         )
+                   use CONFIG_LOG_MODE_{IMMEDIATE,DEFERRED} which defaults to v2"
+          )
 endif()
 
 if(CONFIG_LOG1)
   message(WARNING "Logging v1 has been deprecated. Use v2 instead and adapt \
                    custom backend to the new backend API"
-         )
+          )
 endif()