Fix for Windows: do not run binaries from CWD

This fixes a bug on Windows where `Command::new` would also run
executables from the current working directory, possibly resulting in
accidental runs of programs called `less`.

Cargo.toml

@@ -51,6 +51,7 @@ path_abs = { version = "0.5", default-features = false }
 clircle = "0.3"
 bugreport = "0.4"
 dirs-next = { version = "2.0.0", optional = true }
+grep-cli = "0.1.6"
 
 [dependencies.git2]
 version = "0.13"