gnu: Use `mirror://apache' where applicable.

* gnu/packages/libapr.scm (libapr, libaprutil): Use `mirror://apache'.
* gnu/packages/subversion.scm (subversion): Likewise.

gnu/packages/libapr.scm

@@ -31,7 +31,7 @@ (define-public libapr
     (version "1.4.6")
     (source (origin
              (method url-fetch)
-             (uri (string-append "http://mirrors.ircam.fr/pub/apache//apr/apr-"
+             (uri (string-append "mirror://apache/apr/apr-"
                                  version ".tar.bz2"))
              (sha256
               (base32
@@ -47,7 +47,7 @@ (define-public libapr
                ,(search-patch "libapr-skip-getservbyname-test.patch"))))
     (home-page "http://apr.apache.org/")
     (synopsis "The Apache Portable Runtime Library")
-    (description 
+    (description
      "The mission of the Apache Portable Runtime (APR) project is to create and
 maintain software libraries that provide a predictable and consistent interface
 to underlying platform-specific implementations. The primary goal is to provide
@@ -63,7 +63,7 @@ (define-public libaprutil
     (version "1.5.1")
     (source (origin
              (method url-fetch)
-             (uri (string-append "http://apache.crihan.fr/dist//apr/apr-util-"
+             (uri (string-append "mirror://apache/apr/apr-util-"
                                  version ".tar.bz2"))
              (sha256
               (base32

gnu/packages/subversion.scm

@@ -34,9 +34,8 @@ (define-public subversion
     (version "1.7.8")
     (source (origin
              (method url-fetch)
-             (uri (string-append
-                   "http://mirrors.ircam.fr/pub/apache/subversion/subversion-"
-                   version ".tar.bz2"))
+             (uri (string-append "mirror://apache/subversion/subversion-"
+                                 version ".tar.bz2"))
              (sha256
               (base32
                "11inl9n1riahfnbk1fax0dysm2swakzhzhpmm2zvga6fikcx90zw"))))