Log as errors

Co-authored-by: Alessio Placitelli <alessio.placitelli@gmail.com>

glean-core/android/src/main/java/mozilla/telemetry/glean/Glean.kt

@@ -296,7 +296,7 @@ open class GleanInternalAPI internal constructor () {
             Pass the correct state into `Glean.initialize()`.
             See documentation at https://mozilla.github.io/glean/book/user/general-api.html#initializing-the-glean-sdk
             """.trimIndent()
-            Log.w(LOG_TAG, msg)
+            Log.e(LOG_TAG, msg)
             return
         }
         // Changing upload enabled always happens asynchronous.

glean-core/csharp/Glean/Glean.cs

@@ -266,7 +266,7 @@ namespace Mozilla.Glean
                 string msg = "Changing upload enabled before Glean is initialized is not supported.\n" +
                     "Pass the correct state into `Glean.initialize()`.\n" +
                     "See documentation at https://mozilla.github.io/glean/book/user/general-api.html#initializing-the-glean-sdk";
-                Log.Warning(msg);
+                Log.Error(msg);
 
                 return;
             }

glean-core/ios/Glean/Glean.swift

@@ -229,7 +229,7 @@ public class Glean {
             Pass the correct state into `Glean.initialize()`.
             See documentation at https://mozilla.github.io/glean/book/user/general-api.html#initializing-the-glean-sdk
             """
-            self.logger.warn(msg)
+            self.logger.error(msg)
 
             return
         }

glean-core/python/glean/glean.py

@@ -318,7 +318,7 @@ class Glean:
                   See documentation at
                   https://mozilla.github.io/glean/book/user/general-api.html#initializing-the-glean-sdk
                   """
-            log.warning(inspect.cleandoc(msg))
+            log.error(inspect.cleandoc(msg))
             return
 
         # Changing upload enabled always happens asynchronous.