logger2: corrections suggested by @wclodius2

Author: Vandenplas, Jeremie

src/stdlib_logger.f90

@@ -546,8 +546,7 @@ subroutine format_first_line()
 
             if ( self % max_width == 0 .or.                                         &
                 ( length <= self % max_width .and.                                  &
-                index( string(1:min(length, self % max_width)), new_line('a')) == 0 &
-                )) then
+                index( string(1:length), new_line('a')) == 0 ) ) then
                 write( unit, '(a)', err=999, iostat=iostat, iomsg=iomsg ) &
                     string(1:length)
                 remain = 0

src/tests/logger/test_stdlib_logger.f90

@@ -138,7 +138,7 @@ subroutine test_logging_configuration()
             'to OUTPUT_UNIT, unlimited in width, not preceded by ' //      &
             'a blank line, then by a time stamp, then by MODULE % ' //     &
             'PROCEDURE, be prefixed by INFO. ' // new_line('a') //         &
-            'This is a new line of the same log message.',                  &
+            'This is a new line of the same log message.',                 &
             module = 'N/A',                                                &
             procedure = 'TEST_STDLIB_LOGGER' )