Revert "Copy log file name instead of setting pointer (fr this time)"

This reverts commit 23c878f.

README.md

@@ -6,7 +6,7 @@ MtnLog is a really simple logging library. Originally created for [ds-craft](htt
 
 ## Notice
 
-This library is now in *maintenance mode*. It won't be actively updated, but
+This library is now in *maintenance mode*. It won't actively receive new functionality, but
 it will still have bug fixes, accept pull requests, review issues, add support for
 more compilers and platforms and documentation updates.
 

source/mtnlog.c

@@ -129,15 +129,7 @@ static char *_getTimeString(void)
 void mtnlogInit(const MtnLogLevel level, const char *logFileName)
 {
     mtnlogSetLevel(level); /* set log level */
-
-    /* set log file name */
-    _logFileName = (char *)malloc(sizeof(char) * strlen(logFileName));
-    if (!_logFileName)
-    {
-        perror("Failed to allocate log file name buffer");
-        return;
-    }
-    strcpy(_logFileName, logFileName);
+    _logFileName = (char *)logFileName; /* set log file name */
 
     if (_outFile)
     {