File project.diff of Package flex

--- flex.spec.orig
+++ flex.spec
@@ -28,7 +28,7 @@ Source:         https://github.com/weste
 Source1:        lex-wrapper.sh
 Source2:        README.SUSE
 Source3:        baselibs.conf
-Patch:          use-extensions.patch
+Patch0:         use-extensions.patch
 BuildRequires:  autoconf
 BuildRequires:  automake
 BuildRequires:  gcc-c++
@@ -68,7 +68,7 @@ This package contains libraries for usin
 
 %prep
 %setup -q
-%patch -p1
+%patch0 -p1
 
 %build
 autoreconf -fi