Merge branch 'framework/log_write_IBM_error' into develop

This merge fixes an unconventional usage of quotes in the mpas_io module that
was causing a compile error for some versions of the IBM compiler. A quoted
string was opened with a single-quote and closed with a double-quote, then
joined with a string on a continuation line that was opened with a double-quote
and closed with a single-quote. Now, single-quotes are used throughout the line.

* framework/log_write_IBM_error:
  Correct quotation usage in log message in mpas_io.F

src/framework/mpas_io.F

@@ -4592,8 +4592,8 @@ subroutine MPAS_io_put_att_text(handle, attName, attValue, fieldname, syncVal, i
       trimmedVal = trim(attValue)
 
       if ( valLen > StrKind ) then
-         call mpas_log_write('Attribute ''' // trim(attName) // ''' has a value longer than StrKIND. " // &
-            "It will be cut to a length of $i', MPAS_LOG_WARN, intArgs=(/StrKIND/) )
+         call mpas_log_write('Attribute ''' // trim(attName) // ''' has a value longer than StrKIND. ' // &
+             'It will be cut to a length of $i', MPAS_LOG_WARN, intArgs=(/StrKIND/) )
          attValueLocal = trimmedVal(1:StrKIND)
       else
          attValueLocal = trimmedVal