Get PDF file path from free command line argument

Add 'getopts' to parse command line arguments. Replace `--fill` argument
condition with 'getopts'. Replace the hard-coded PDF file path with one
from the command line argument.

1 files changed, 1 insertions, 0 deletions

diff --git a/Cargo.toml b/Cargo.toml
index 3697c5d..af7c62b 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -5,6 +5,7 @@ edition = "2018"
 
 [dependencies]
 derive_builder = "0.10.0"
+getopts = "0.2.21"
 pdf_forms = "0.3.4"
 serde = { version = "1.0.125", features = ["derive"]  }
 toml = "0.5.8"