bpo-32035: Fix words about strings and bytes in zipfile documentation. (GH-10592)

diff --git a/Lib/zipfile.py b/Lib/zipfile.py
index 4a6b40e..dc16f6d 100644
--- a/Lib/zipfile.py
+++ b/Lib/zipfile.py
@@ -402,7 +402,7 @@
         return ''.join(result)
 
     def FileHeader(self, zip64=None):
-        """Return the per-file header as a string."""
+        """Return the per-file header as a bytes object."""
         dt = self.date_time
         dosdate = (dt[0] - 1980) << 9 | dt[1] << 5 | dt[2]
         dostime = dt[3] << 11 | dt[4] << 5 | (dt[5] // 2)
@@ -1429,7 +1429,7 @@
         self._didModify = True
 
     def read(self, name, pwd=None):
-        """Return file bytes (as a string) for name."""
+        """Return file bytes for name."""
         with self.open(name, "r", pwd) as fp:
             return fp.read()