[yabridgectl] Fix typo in winedump warning

tools/yabridgectl/src/symbols.rs

@@ -97,7 +97,7 @@ fn parse_pe32_winedump<P: AsRef<Path>>(binary: P) -> Result<Pe32Info> {
             Err(_) => None,
         })
         .ok_or_else(|| {
-            anyhow!("Winedump output did not contain a 'Machine:' line. Is a text file?")
+            anyhow!("Winedump output did not contain a 'Machine:' line. Is this a text file?")
         })?;
 
     // And we'll just parse _all_ exported functions. Previously we would only check whether this