[clang] Fix trailing whitespace in DiagnosticParseKinds.td

Fixes 567a660

Author: jrtc27

clang/include/clang/Basic/DiagnosticParseKinds.td

@@ -1349,7 +1349,7 @@ def warn_omp_extra_tokens_at_eol : Warning<
   "extra tokens at the end of '#pragma omp %0' are ignored">,
   InGroup<ExtraTokens>;
 def err_omp_multiple_step_or_linear_modifier : Error<
-  "multiple %select{'step size'|'linear modifier'}0 found in linear clause">; 
+  "multiple %select{'step size'|'linear modifier'}0 found in linear clause">;
 def warn_pragma_expected_colon_r_paren : Warning<
   "missing ':' or ')' after %0 - ignoring">, InGroup<IgnoredPragmas>;
 def err_omp_unknown_directive : Error<