#86 and #87 - fix exit method signature

* fixing signature of exit

* resolve issue with type on exit. Ensure tests handle line feeds, flushing and loglevels consistently on Windows and Linux.

* updated spacing and added .editorconfig

* revert line length to styleguide

* fix tests

Author: oshai

.editorconfig

@@ -9,3 +9,4 @@ indent_style = space
 charset = utf-8
 indent_size = 4
 
+

src/commonMain/kotlin/mu/KLogger.kt

@@ -1,9 +1,7 @@
 package mu
 
-
 expect interface KLogger {
 
-
     /**
      * Lazy add a log message if isTraceEnabled is true
      */
@@ -117,7 +115,7 @@ expect interface KLogger {
     /**
      * Add a log message with the return value of a method
      */
-    fun <T> exit(retval: T?): T? where T : Any
+    fun <T> exit(retval: T): T where T : Any?
 
     /**
      * Add a log message indicating an exception will be thrown along with the stack trace.

src/jsMain/kotlin/mu/KLogger.kt

@@ -1,9 +1,7 @@
 package mu
 
-
 actual interface KLogger {
 
-
     /**
      * Lazy add a log message if isTraceEnabled is true
      */
@@ -117,7 +115,7 @@ actual interface KLogger {
     /**
      * Add a log message with the return value of a method
      */
-    actual fun <T> exit(retval: T?): T? where T : Any
+    actual fun <T> exit(retval: T): T where T : Any?
 
     /**
      * Add a log message indicating an exception will be thrown along with the stack trace.

src/jsMain/kotlin/mu/internal/KLoggerJS.kt

@@ -98,7 +98,7 @@ internal class KLoggerJS(
         TRACE.logIfEnabled({ "exit()" }, APPENDER::trace)
     }
 
-    override fun <T : Any> exit(retval: T?): T? {
+    override fun <T : Any?> exit(retval: T): T {
         TRACE.logIfEnabled({ "exit($retval)" }, APPENDER::trace)
         return retval
     }

src/jvmMain/kotlin/mu/KLogger.kt

@@ -127,7 +127,7 @@ actual interface KLogger : Logger {
     /**
      * Add a log message with the return value of a method
      */
-    actual fun <T> exit(retval: T?): T? where T : Any
+    actual fun <T> exit(retval: T): T where T : Any?
 
     /**
      * Add a log message indicating an exception will be thrown along with the stack trace.