Misc minor fixes

- avoid "multi-line comment" warning in ssl_client2.c
- rm useless initialisation of mfl_code in ssl_init()
- const-correctness of ssl_parse_*_ext()
- a code formating issue
diff --git a/include/polarssl/ssl.h b/include/polarssl/ssl.h
index e9e33e3..4e1d25a 100644
--- a/include/polarssl/ssl.h
+++ b/include/polarssl/ssl.h
@@ -118,7 +118,7 @@
 #define SSL_MINOR_VERSION_3             3   /*!< TLS v1.2 */
 
 /* RFC 6066 section 4, see also mfl_code_to_length in ssl_tls.c
- * NONE must be zero so that memset()ing session to zero works */
+ * NONE must be zero so that memset()ing structure to zero works */
 #define SSL_MAX_FRAG_LEN_NONE           0   /*!< don't use this extension   */
 #define SSL_MAX_FRAG_LEN_512            1   /*!< MaxFragmentLength 2^9      */
 #define SSL_MAX_FRAG_LEN_1024           2   /*!< MaxFragmentLength 2^10     */
diff --git a/library/ssl_cli.c b/library/ssl_cli.c
index 9050edb..c89bf0c 100644
--- a/library/ssl_cli.c
+++ b/library/ssl_cli.c
@@ -488,7 +488,7 @@
 }
 
 static int ssl_parse_renegotiation_info( ssl_context *ssl,
-                                         unsigned char *buf,
+                                         const unsigned char *buf,
                                          size_t len )
 {
     int ret;
@@ -527,7 +527,7 @@
     return( 0 );
 }
 static int ssl_parse_max_fragment_length_ext( ssl_context *ssl,
-                                              unsigned char *buf,
+                                              const unsigned char *buf,
                                               size_t len )
 {
     /*
diff --git a/library/ssl_srv.c b/library/ssl_srv.c
index abcc867..3e18386 100644
--- a/library/ssl_srv.c
+++ b/library/ssl_srv.c
@@ -992,7 +992,8 @@
 {
     unsigned char *p = buf;
 
-    if( ssl->session_negotiate->mfl_code == SSL_MAX_FRAG_LEN_NONE ) {
+    if( ssl->session_negotiate->mfl_code == SSL_MAX_FRAG_LEN_NONE )
+    {
         *olen = 0;
         return;
     }
diff --git a/library/ssl_tls.c b/library/ssl_tls.c
index a230dc9..f701a8a 100644
--- a/library/ssl_tls.c
+++ b/library/ssl_tls.c
@@ -2843,8 +2843,6 @@
     memset( ssl-> in_ctr, 0, SSL_BUFFER_LEN );
     memset( ssl->out_ctr, 0, SSL_BUFFER_LEN );
 
-    ssl->mfl_code = SSL_MAX_FRAG_LEN_NONE;
-
     ssl->hostname = NULL;
     ssl->hostname_len = 0;
 
diff --git a/programs/ssl/ssl_client2.c b/programs/ssl/ssl_client2.c
index 0c770f6..56d0e91 100644
--- a/programs/ssl/ssl_client2.c
+++ b/programs/ssl/ssl_client2.c
@@ -59,8 +59,7 @@
 #define DFL_AUTH_MODE           SSL_VERIFY_OPTIONAL
 #define DFL_MFL_CODE            SSL_MAX_FRAG_LEN_NONE
 
-/* Uncomment to test sending longer paquets (for fragmentation purposes) */
-#define LONG_HEADER // "User-agent: blah-blah-blah-blah-blah-blah-blah-"     \
+#define LONG_HEADER "User-agent: blah-blah-blah-blah-blah-blah-blah-blah-"   \
     "-01--blah-blah-blah-blah-blah-blah-blah-blah-blah-blah-blah-blah-blah-" \
     "-02--blah-blah-blah-blah-blah-blah-blah-blah-blah-blah-blah-blah-blah-" \
     "-03--blah-blah-blah-blah-blah-blah-blah-blah-blah-blah-blah-blah-blah-" \
@@ -69,7 +68,9 @@
     "-06--blah-blah-blah-blah-blah-blah-blah-blah-blah-blah-blah-blah-blah-" \
     "-07--blah-blah-blah-blah-blah-blah-blah-blah-blah-blah-blah-blah-END\r\n"
 
-#define GET_REQUEST "GET %s HTTP/1.0\r\n" LONG_HEADER "\r\n"
+/* Uncomment LONG_HEADER in the definition of GET_REQUEST to test sending
+ * longer paquets (for fragmentation purposes) */
+#define GET_REQUEST "GET %s HTTP/1.0\r\n" /* LONG_HEADER */ "\r\n"
 
 /*
  * global options