Typo (#151)

Found via `codespell`

Author: luzpaz

numpydoc/tests/test_docscrape.py

@@ -56,7 +56,7 @@
   -------
   out : ndarray
       The drawn samples, arranged according to `shape`.  If the
-      shape given is (m,n,...), then the shape of `out` is is
+      shape given is (m,n,...), then the shape of `out` is
       (m,n,...,N).
 
       In other words, each entry ``out[i,j,...,:]`` is an N-dimensional
@@ -371,7 +371,7 @@ def test_str():
 -------
 out : ndarray
     The drawn samples, arranged according to `shape`.  If the
-    shape given is (m,n,...), then the shape of `out` is is
+    shape given is (m,n,...), then the shape of `out` is
     (m,n,...,N).
 
     In other words, each entry ``out[i,j,...,:]`` is an N-dimensional
@@ -503,7 +503,7 @@ def test_sphinx_str():
 
     out : ndarray
         The drawn samples, arranged according to `shape`.  If the
-        shape given is (m,n,...), then the shape of `out` is is
+        shape given is (m,n,...), then the shape of `out` is
         (m,n,...,N).
 
         In other words, each entry ``out[i,j,...,:]`` is an N-dimensional