version/tests: Constify some character strings.

dlls/version/tests/info.c

@@ -204,7 +204,7 @@ static void test_info(void)
     VS_FIXEDFILEINFO *pFixedVersionInfo;
     UINT uiLength;
     char VersionString[MAX_PATH];
-    static CHAR backslash[] = "\\";
+    static const char backslash[] = "\\";
     DWORDLONG dwlVersion;
 
     hdl = 0x55555555;

dlls/version/tests/install.c

@@ -34,7 +34,7 @@ static void test_find_file(void)
     char filename[MAX_PATH];
     char outBuf[MAX_PATH];
     char windir[MAX_PATH];
-    static CHAR empty[]    = "",
+    static const char empty[]       = "",
                       regedit[]     = "regedit",
                       regedit_exe[] = "regedit.exe";