maint: Fix syntax-check flaws.

Signed-off-by: Simon Josefsson <simon@josefsson.org>
diff --git a/cfg.mk b/cfg.mk
index a96d7af..2ce3162 100644
--- a/cfg.mk
+++ b/cfg.mk
@@ -40,7 +40,7 @@
 exclude_file_name_regexp--sc_error_message_uppercase = ^tests/Test_tree.c$$
 exclude_file_name_regexp--sc_unmarked_diagnostics = ^tests/Test_tree.c$$
 exclude_file_name_regexp--sc_prohibit_undesirable_word_seq = ^msvc/.*$$
-exclude_file_name_regexp--sc_trailing_blank = ^msvc/.*$$
+exclude_file_name_regexp--sc_trailing_blank = ^msvc/.*|tests/(TestCertOctetOverflow.der|TestIndef.p12|TestIndef2.p12|TestIndef3.der|invalid-assignments2.txt)|tests/invalid-x509/id-.*$$
 exclude_file_name_regexp--sc_useless_cpp_parens = ^lib/includes/libtasn1.h$$
 exclude_file_name_regexp--sc_prohibit_eol_brackets = ^(tests/.*|fuzz/.*|bootstrap)$$
 
diff --git a/msvc/snprintf.h b/msvc/snprintf.h
index 58b585f..36012b0 100644
--- a/msvc/snprintf.h
+++ b/msvc/snprintf.h
@@ -1,4 +1,4 @@
-#if defined(_MSC_VER) && _MSC_VER <= 1900
+#if defined _MSC_VER && _MSC_VER <= 1900
 # include <stdarg.h>
 # include <stdio.h>
 # define snprintf c99_snprintf