Various style, typo and whitespace corrections

HACKING

@@ -5,8 +5,8 @@
 Git repository
 ---------------------
 
-For interested developers, we have a public repository. To check out and 
-compile the code, you need the following tools:
+For interested developers, we have a public repository. To check out and compile
+the code, you need the following tools:
 
     - Git
     - a recent GNU C compiler (>= 3.x)

src/libstrongswan/crypto/diffie_hellman.h

@@ -74,8 +74,7 @@ struct diffie_hellman_t {
 	/**
 	 * Returns the shared secret of this diffie hellman exchange.
 	 *
-	 * Space for returned secret is allocated and must be
-	 * freed by the caller.
+	 * Space for returned secret is allocated and must be freed by the caller.
 	 *
 	 * @param secret	shared secret will be written into this chunk
 	 * @return			SUCCESS, FAILED if not both DH values are set
@@ -108,7 +107,7 @@ struct diffie_hellman_t {
 	diffie_hellman_group_t (*get_dh_group) (diffie_hellman_t *this);
 
 	/**
-	 * Destroys an diffie_hellman_t object.
+	 * Destroys a diffie_hellman_t object.
 	 */
 	void (*destroy) (diffie_hellman_t *this);
 };