!2 ocaml-extlib delete -S git from %autosetup, and delete BuildRequires git

From: @chenyanpanHW
Reviewed-by: @jingxiaolu
Signed-off-by: @jingxiaolu

ocaml-extlib.spec

@@ -2,13 +2,13 @@
 
 Name:           ocaml-extlib
 Version:        1.7.5
-Release:        4
+Release:        5
 Summary:        A set of additional useful functions and modules for OCaml
 License:        LGPLv2+ with exceptions
 URL:            https://github.com/ygrek/ocaml-extlib
 Source0:        https://github.com/ygrek/ocaml-extlib/releases/download/%{version}/extlib-%{version}.tar.gz
 
-BuildRequires:  gawk git ocaml >= 4.00.1 ocaml-camlp4-devel ocaml-cppo
+BuildRequires:  gawk ocaml >= 4.00.1 ocaml-camlp4-devel ocaml-cppo
 BuildRequires:  ocaml-findlib-devel >= 1.3.3-3 ocaml-ocamldoc
 
 %description
@@ -27,7 +27,7 @@ The package provides libraries and some other development documents for developi
 that use %{name}.
 
 %prep
-%autosetup -S git -p1 -n extlib-%{version}
+%autosetup -p1 -n extlib-%{version}
 
 %build
 unset MAKEFLAGS
@@ -48,5 +48,8 @@ install -d $OCAMLFIND_DESTDIR/stublibs
 %{_libdir}/ocaml/extlib/*.{a,cmx,cmxa,mli}
 
 %changelog
+* Fri Jul 30 2021 chenyanpanHW <chenyanpan@huawei.com> - 1.7.5-5
+- DESC: delete -S git from %autosetup, and delete BuildRequires git
+
 * Wed Feb 26 2020 zhouyihang<zhouyihang1@huawei.com> - 1.7.5-4
 - Package init