fix: fix pricePerBroadcaster JSON file line breaks parsing bug

CHANGELOG_PENDING.md

@@ -18,6 +18,8 @@
 
 ### Bug Fixes 🐞
 
+- \[#2913](https://github.com/livepeer/go-livepeer/issues/2912) fixes a bug that prevented `pricePerBroadcaster` JSON files with line-breaks from being parsed correctly (@rickstaa).
+
 #### CLI
 
 #### General

common/readfromfile.go

@@ -1,7 +1,6 @@
 package common
 
 import (
-	"bufio"
 	"fmt"
 	"os"
 )
@@ -18,23 +17,18 @@ func ReadFromFile(s string) (string, error) {
 	if info.IsDir() {
 		// If the supplied string is a directory,
 		// assume it is the pass and return it
-		// along with an approptiate error.
+		// along with an appropriate error.
 		return s, fmt.Errorf("supplied path is a directory")
 	}
-	file, err := os.Open(s)
+	bytes, err := os.ReadFile(s)
 	if err != nil {
 		return s, err
 	}
-	scanner := bufio.NewScanner(file)
-	scanner.Split(bufio.ScanLines)
+	txt := string(bytes)
 
-	scanner.Scan()
-	txtline := scanner.Text()
-	file.Close()
-
-	if len(txtline) == 0 {
+	if len(txt) == 0 {
 		return s, fmt.Errorf("supplied file is empty")
 	}
 
-	return txtline, nil
+	return txt, nil
 }