Merge branch 'logger_fix' into level_logger

Author: jvdp1

src/stdlib_logger.f90

@@ -457,10 +457,12 @@ pure subroutine configuration( self, add_blank_line, indent, level, &
         if ( present(level) ) level = self % level
         if ( present(max_width) ) max_width = self % max_width
         if ( present(time_stamp) ) time_stamp = self % time_stamp
-        if ( present(log_units) .and. self % units .gt. 0 ) then
-            log_units = self % log_units(1:self % units)
-        else
-            allocate(log_units(0))
+        if ( present(log_units) ) then
+            if ( self % units .gt. 0 ) then
+                log_units = self % log_units(1:self % units)
+            else
+                allocate(log_units(0))
+            end if
         end if
 
     end subroutine configuration