Fix comments.



git-svn-id: svn://svn.valgrind.org/valgrind/trunk@4148 a5019735-40e9-0310-863c-91ae7b9d1cf9
diff --git a/coregrind/m_libcprint.c b/coregrind/m_libcprint.c
index c51bd1d..3a3bc15 100644
--- a/coregrind/m_libcprint.c
+++ b/coregrind/m_libcprint.c
@@ -154,7 +154,7 @@
    percentify()
    ------------------------------------------------------------------ */
 
-// Percentify n/m with p decimal places.  Includes the '%' symbol at the end.
+// Percentify n/m with d decimal places.  Includes the '%' symbol at the end.
 void VG_(percentify)(UInt n, UInt m, UInt d, Int n_buf, char buf[]) 
 {
    Int i, len, space;