outelf.c: remove stray semicolon

Harmless, but undesirable.

Fixes: #57
Signed-off-by: H. Peter Anvin (Intel) <hpa@zytor.com>

Author: H. Peter Anvin

output/outelf.c

@@ -528,7 +528,7 @@ static void elf_init(void)
     saa_wbytes(strs, elf_module, strlen(elf_module)+1);
     strslen = 2 + strlen(elf_module);
     shstrtab = NULL;
-    shstrtablen = shstrtabsize = 0;;
+    shstrtablen = shstrtabsize = 0;
     add_sectname("", "");       /* SHN_UNDEF */
 
     fwds = NULL;