add missing comments

bn_mp_get_long.c

@@ -37,3 +37,7 @@ unsigned long mp_get_long(const mp_int *a)
    return res;
 }
 #endif
+
+/* ref:         $Format:%D$ */
+/* git commit:  $Format:%H$ */
+/* commit time: $Format:%ai$ */

bn_mp_get_long_long.c

@@ -37,3 +37,7 @@ unsigned long long mp_get_long_long(const mp_int *a)
    return res;
 }
 #endif
+
+/* ref:         $Format:%D$ */
+/* git commit:  $Format:%H$ */
+/* commit time: $Format:%ai$ */

bn_mp_sqrtmod_prime.c

@@ -5,6 +5,10 @@
  * LibTomMath is a library that provides multiple-precision
  * integer arithmetic as well as number theoretic functionality.
  *
+ * The library was designed directly after the MPI library by
+ * Michael Fromberger but has been written from scratch with
+ * additional optimizations in place.
+ *
  * The library is free for all purposes without any express
  * guarantee it works.
  */
@@ -122,3 +126,7 @@ cleanup:
 }
 
 #endif
+
+/* ref:         $Format:%D$ */
+/* git commit:  $Format:%H$ */
+/* commit time: $Format:%ai$ */

tommath_class.h

@@ -1,3 +1,15 @@
+/* LibTomMath, multiple-precision integer library -- Tom St Denis
+ *
+ * LibTomMath is a library that provides multiple-precision
+ * integer arithmetic as well as number theoretic functionality.
+ *
+ * The library was designed directly after the MPI library by
+ * Michael Fromberger but has been written from scratch with
+ * additional optimizations in place.
+ *
+ * The library is free for all purposes without any express
+ * guarantee it works.
+ */
 #if !(defined(LTM1) && defined(LTM2) && defined(LTM3))
 #if defined(LTM2)
 #   define LTM3
@@ -1126,3 +1138,7 @@
 #else
 #   define LTM_LAST
 #endif
+
+/* ref:         $Format:%D$ */
+/* git commit:  $Format:%H$ */
+/* commit time: $Format:%ai$ */

tommath_superclass.h

@@ -1,3 +1,16 @@
+/* LibTomMath, multiple-precision integer library -- Tom St Denis
+ *
+ * LibTomMath is a library that provides multiple-precision
+ * integer arithmetic as well as number theoretic functionality.
+ *
+ * The library was designed directly after the MPI library by
+ * Michael Fromberger but has been written from scratch with
+ * additional optimizations in place.
+ *
+ * The library is free for all purposes without any express
+ * guarantee it works.
+ */
+
 /* super class file for PK algos */
 
 /* default ... include all MPI */