Clarify source origin

lib/clib/memcpy.c

@@ -30,6 +30,17 @@
  * SUCH DAMAGE.
  */
 
+/**
+ * @file  memcpy.h
+ * @brief Copy a block of memory, handling overlap.
+ *
+ * Code originate from FreeBSD base, revision 229286.
+ *
+ * Browse at:
+ * https://svnweb.freebsd.org/base/head/lib/libc/string/bcopy.c?revision=229286
+ *
+ */
+
 #include "clib.h"
 
 #if __GNUC__ > 2
@@ -52,10 +63,6 @@ typedef int word; // "word" used for optimal copy speed
 
 /**
  * @brief Copy a block of memory, handling overlap.
- *
- * Original file can be found at:
- * https://svnweb.freebsd.org/base/release/9.0.0/lib/libc/string/bcopy.c?revision=229286
- *
  */
 void MemCopy(void *destination, const void *source, unsigned int length)
 {

lib/clib/memset.c

@@ -30,8 +30,16 @@
  * SUCH DAMAGE.
  */
 
-//TODO
+/**
-//https://svnweb.freebsd.org/base/release/9.0.0/lib/libc/string/memset.c?revision=229286
+ * @file  memset.h
+ * @brief Fill block of memory with a constant value.
+ *
+ * Code originate from FreeBSD base, revision 229286.
+ *
+ * Browse at:
+ * https://svnweb.freebsd.org/base/head/lib/libc/string/memset.c?revision=229286
+ *
+ */
 
 #include "clib.h"
 
@@ -39,6 +47,9 @@
 #pragma GCC diagnostic ignored "-Wcast-align"
 #endif
 
+/**
+ * @brief Fill block of memory with a constant value.
+ */
 void MemSet(void *dst0, int c0, unsigned int length)
 {
     unsigned char *dst = (unsigned char*) dst0;

lib/clib/strcmp.c

@@ -34,8 +34,10 @@
  * @file  strcmp.h
  * @brief Compare two null terminated strings to each other.
  *
- * Original file can be found at:
+ * Code originate from FreeBSD base, revision 229286.
- * https://svnweb.freebsd.org/base/release/9.0.0/lib/libc/string/strcmp.c?revision=229286
+ *
+ * Browse at:
+ * https://svnweb.freebsd.org/base/head/lib/libc/string/strcmp.c?revision=229286
  *
  */
 
@@ -43,7 +45,6 @@
 
 /**
  * @brief Compare two null terminated strings to each other.
- *
  */
 bool StrIsEqual(const char *s1, const char *s2)
 {