test_issue_6874: fix formatting

tests/issues/test_issue_6874.odin

@@ -5,31 +5,31 @@ package test_issues
 import "core:fmt"
 
 PersonData :: struct {
-    health: int,
-    age: int,
+	health: int,
+	age: int,
 }
 
 MyUnion :: union {
-    f32,
-    int,
-    PersonData,
+	f32,
+	int,
+	PersonData,
 }
 
 change_union_data :: proc(data: MyUnion) {
-    switch &v in data {
-    case int:
-        v = 10
-    case f32:
-        fmt.println("f32")
-    case PersonData:
-        fmt.println("PersonData")
-        fmt.println(v)
-    }
+	switch &v in data {
+	case int:
+		v = 10
+	case f32:
+		fmt.println("f32")
+	case PersonData:
+		fmt.println("PersonData")
+		fmt.println(v)
+	}
 }
 
 main :: proc() {
-    val: MyUnion = int(12)
-    fmt.printfln("Before the call: %v", val)
-    change_union_data(val)
-    fmt.printfln("After the call: %v", val)
-}
+	val: MyUnion = int(12)
+	fmt.printfln("Before the call: %v", val)
+	change_union_data(val)
+	fmt.printfln("After the call: %v", val)
+}