Fixed documentation issues found by clang
diff --git a/include/polarssl/ssl_ciphersuites.h b/include/polarssl/ssl_ciphersuites.h
index 3b13ef3..28a5855 100644
--- a/include/polarssl/ssl_ciphersuites.h
+++ b/include/polarssl/ssl_ciphersuites.h
@@ -226,7 +226,7 @@
 
 typedef struct _ssl_ciphersuite_t ssl_ciphersuite_t;
 
-#define POLARSSL_CIPHERSUITE_WEAK   0x01    /*<! Weak ciphersuite flag      */
+#define POLARSSL_CIPHERSUITE_WEAK   0x01    /**< Weak ciphersuite flag      */
 
 /**
  * \brief   This structure is used for storing ciphersuite information