typos

git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@74771 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/README.txt b/README.txt
index bf93f60..e16dd4d 100644
--- a/README.txt
+++ b/README.txt
@@ -9,7 +9,7 @@
 
 ================================
 
-This is a replacment library for libgcc.  Each function is contained
+This is a replacement library for libgcc.  Each function is contained
 in its own file.  Each function has a corresponding unit test under
 test/Unit.
 
@@ -34,10 +34,10 @@
 di_int __ashrdi3(di_int a, si_int b);      // a >> b  arithmetic (sign fill)
 di_int __lshrdi3(di_int a, si_int b);      // a >> b  logical    (zero fill)
 
-si_int __clzsi2(si_int a);  // count leading zeroes
-si_int __clzdi2(di_int a);  // count leading zeroes
-si_int __ctzsi2(si_int a);  // count trailing zeroes
-si_int __ctzdi2(di_int a);  // count trailing zeroes
+si_int __clzsi2(si_int a);  // count leading zeros
+si_int __clzdi2(di_int a);  // count leading zeros
+si_int __ctzsi2(si_int a);  // count trailing zeros
+si_int __ctzdi2(di_int a);  // count trailing zeros
 
 si_int __ffsdi2(di_int a);  // find least significant 1 bit