locale.c: Add braces, indent code only

Prior to this commit, the 'switch' immediately followed the 'if' without
a left brace for the 'if'.  This conserved indentation and was feasible
because the scopes were identical..  But a future commit will want to have the scope of the 'if' be larger than that of the 'switch', so add the braces for the 'if' and indent the 'switch' code.

locale.c

@@ -5530,44 +5530,47 @@ S_my_localeconv(pTHX_ const int item)
      *
      * For each, set up the appropriate parameters for the call below to
      * S_populate_hash_from_localeconv() */
-    if (item != 0) switch (item) {
-      default:
-        locale_panic_(Perl_form(aTHX_
-                    "Unexpected item passed to my_localeconv: %d", item));
-        break;
+    if (item != 0) {
+        switch (item) {
+          default:
+            locale_panic_(Perl_form(aTHX_
+                          "Unexpected item passed to my_localeconv: %d", item));
+            break;
 
 #    ifdef USE_LOCALE_NUMERIC
 
-      case RADIXCHAR:
-        locale = numeric_locale = PL_numeric_name;
-        index_bits = INDEX_TO_BIT(LC_NUMERIC_INDEX_);
-        strings[NUMERIC_STRING_OFFSET] = DECIMAL_POINT_ADDRESS;
-        integers = NULL;
-        break;
+          case RADIXCHAR:
+            locale = numeric_locale = PL_numeric_name;
+            index_bits = INDEX_TO_BIT(LC_NUMERIC_INDEX_);
+            strings[NUMERIC_STRING_OFFSET] = DECIMAL_POINT_ADDRESS;
+            integers = NULL;
+            break;
 
-      case THOUSEP:
-        index_bits = INDEX_TO_BIT(LC_NUMERIC_INDEX_);
-        locale = numeric_locale = PL_numeric_name;
-        strings[NUMERIC_STRING_OFFSET] = thousands_sep_string;
-        integers = NULL;
-        break;
+          case THOUSEP:
+            index_bits = INDEX_TO_BIT(LC_NUMERIC_INDEX_);
+            locale = numeric_locale = PL_numeric_name;
+            strings[NUMERIC_STRING_OFFSET] = thousands_sep_string;
+            integers = NULL;
+            break;
 
 #    endif
 #    ifdef USE_LOCALE_MONETARY
 
-      case CRNCYSTR:
-        index_bits = INDEX_TO_BIT(LC_MONETARY_INDEX_);
-        locale = monetary_locale = querylocale_i(LC_MONETARY_INDEX_);
+          case CRNCYSTR:
+            index_bits = INDEX_TO_BIT(LC_MONETARY_INDEX_);
+            locale = monetary_locale = querylocale_i(LC_MONETARY_INDEX_);
 
-        /* This item needs the values for both the currency symbol, and another
-         * one used to construct the nl_langino()-compatible return */
-        strings[MONETARY_STRING_OFFSET] = CURRENCY_SYMBOL_ADDRESS;
-        integers = P_CS_PRECEDES_ADDRESS;
-        break;
+            /* This item needs the values for both the currency symbol, and
+             * another one used to construct the nl_langino()-compatible
+             * return. */
+            strings[MONETARY_STRING_OFFSET] = CURRENCY_SYMBOL_ADDRESS;
+            integers = P_CS_PRECEDES_ADDRESS;
+            break;
 
 #    endif
 
-    } /* End of switch() */
+        } /* End of switch() */
+    }
 
     else    /* End of for just one item to emulate nl_langinfo() */