Refactor error messages to not have quotes

src/error.rs

@@ -23,7 +23,7 @@ impl SassError {
 
 impl Display for SassError {
     fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
-        write!(f, "error: {} at {}", self.message, self.pos)
+        write!(f, "Error: {}", self.message)
     }
 }
 

src/main.rs

@@ -3,7 +3,7 @@ use std::io::{stdout, BufWriter};
 
 use grass::StyleSheet;
 
-fn main() -> Result<(), String> {
+fn main() {
     let matches = App::new("grass")
         .version(env!("CARGO_PKG_VERSION"))
         .about("SCSS Compiler in rust")
@@ -63,8 +63,13 @@ fn main() -> Result<(), String> {
     let mut stdout = BufWriter::new(stdout());
     if let Some(inputs) = matches.values_of("INPUT") {
         for name in inputs {
-            StyleSheet::from_path(name)?.print_as_css(&mut stdout)?;
+            match StyleSheet::from_path(name) {
+                Ok(a) => a,
+                Err(b) => {
+                    eprintln!("{}", b);
+                    std::process::exit(1)
+                }
+            }.print_as_css(&mut stdout).unwrap();
         }
     }
-    Ok(())
 }