Fix Appveyor Cygwin mirror

appveyor.yml

@@ -2,25 +2,24 @@ platform:
     - x86
 
 environment:
-    global:
-        CYG_ROOT: C:/cygwin
-        CYG_MIRROR: http://cygwin.uib.no
-        CYG_CACHE: C:/cygwin/var/cache/setup
-    matrix:
-        - 
-            CYG_ARCH: x86
+  global:
+    CYG_ROOT: C:/cygwin
+    CYG_CACHE: C:/cygwin/var/cache/setup
+    CYG_MIRROR: http://mirrors.kernel.org/sourceware/cygwin/
+  matrix:
+    -
+      CYG_ARCH: x86
 
 init:
-    - 'echo System architecture: %PLATFORM%'
+  - 'echo System architecture: %PLATFORM%'
 
 install:
-    - 'appveyor DownloadFile http://cygwin.com/setup-%CYG_ARCH%.exe -FileName setup.exe'
-    - 'setup.exe -qnNdO -R "%CYG_ROOT%" -s "%CYG_MIRROR%" -l "%CYG_CACHE%" -P make -P git -P gcc-core -P ocaml -P ocaml-camlp4 -P ocaml-compiler-libs -P curl -P libncurses-devel -P m4 -P unzip >NUL'
-    - 'setup.exe -qnNdO -R "%CYG_ROOT%" -s "%CYG_MIRROR%" -l "%CYG_CACHE%" -P libmpfr-devel -P patch -P flexdll >NUL'
-    - '%CYG_ROOT%/bin/bash -lc "cygcheck -dc cygwin"'
+  - 'appveyor DownloadFile http://cygwin.com/setup-%CYG_ARCH%.exe -FileName setup.exe'
+  - 'setup.exe -qnNdO -R "%CYG_ROOT%" -s "%CYG_MIRROR%" -l "%CYG_CACHE%" -P make -P git -P gcc-core -P ocaml -P ocaml-camlp4 -P ocaml-compiler-libs -P curl -P libncurses-devel -P m4 -P unzip >NUL'
+  - 'setup.exe -qnNdO -R "%CYG_ROOT%" -s "%CYG_MIRROR%" -l "%CYG_CACHE%" -P libmpfr-devel -P patch -P flexdll >NUL'
+  - '%CYG_ROOT%/bin/bash -lc "cygcheck -dc cygwin"'
 
 build_script:
-    - '%CYG_ROOT%/bin/bash -lc "cd \"$OLDPWD\" && env DJDIR="workaround" ./configure && make lib-ext && make && make install"'
-    - '%CYG_ROOT%/bin/bash -lc "opam init -y -a"'
-    - '%CYG_ROOT%/bin/bash -lc "opam install -y -v lwt"'
-
+  - '%CYG_ROOT%/bin/bash -lc "cd \"$OLDPWD\" && env DJDIR="workaround" ./configure && make lib-ext && make && make install"'
+  - '%CYG_ROOT%/bin/bash -lc "opam init -y -a"'
+  - '%CYG_ROOT%/bin/bash -lc "opam install -y -v ocamlfind"'