[prepare] correct patch variable

PKGBUILD

@@ -23,7 +23,7 @@ _commit=29bc0a2d7fefc0e8bc5f60b72c3a666809d490f9  # tags/0.66.1^0
 # Fedora patches: https://src.fedoraproject.org/rpms/vte291/tree/
 _frepourl='https://src.fedoraproject.org/rpms/vte291'
 _frepobranch='rawhide'
-_fpatchfile100='vte291-cntnr-precmd-preexec-scroll.patch'
+_fpatchfile0='vte291-cntnr-precmd-preexec-scroll.patch'
 _fcommit='77371af24cd2f8e911ec522cf38764f58f8925ec'
 
 # VTE source ref
@@ -31,13 +31,13 @@ _vtetag=${pkgver}
 
 source=(
   "git+https://gitlab.gnome.org/GNOME/vte.git#commit=$_commit"
-  "${_fpatchfile100}-${_fcommit}::${_frepourl}/raw/${_fcommit}/f/${_fpatchfile100}")
+  "${_fpatchfile0}-${_fcommit}::${_frepourl}/raw/${_fcommit}/f/${_fpatchfile0}")
 sha256sums=('SKIP'
             'b732fbf452de5abd5d78e9126a87d87686ccb473dbabf34ef794b0a955c0f892')
 
 prepare () {
   cd vte
-  patch -p1 -i "../${_fpatchfile100}-${_fcommit}"
+  patch -p1 -i "../${_fpatchfile0}-${_fcommit}"
 }
 
 build() {