lextest cleanup.

Author: bmomjian

src/lextest/scan.l

@@ -1,8 +1,10 @@
+%{
 /*
 	This should work, but non-patched flex 2.5.3 fails because input()
 	doesn't return EOF or '\0'
 	Bruce Momjian <root@candle.pha.pa.us>
 */
+%}
 %%
 .		{
 			int ch;