Added support for printing specific match indices ('-m' and '-p' flags combined)

main.go

@@ -705,8 +705,14 @@ func main() {
 				if !(*multiLineFlag) {
 					fmt.Fprintf(out, "Line %d:\n", lineNum)
 				}
-				for _, idx := range matchIndices {
+				for i, m := range matchIndices {
-					fmt.Fprintf(out, "%s\n", idx.toString())
+					// Only print a match if:
+					// 	a. We are _not_ printing just one match
+					// 	OR
+					// 	b. We _are_ printing just one match, and this is that match
+					if !matchNumFlagEnabled || (i+1) == *matchNum { // Match indexes start from 1; loop counter starts from 0
+						fmt.Fprintf(out, "%s\n", m.toString())
+					}
 				}
 				err := out.Flush()
 				if err != nil {