Fix stale caching of winespeak.

.includes/bottle.sh

@@ -78,6 +78,7 @@ install_winespeak() {
     local cscriptPath="${WINEPREFIX}/drive_c/windows/syswow64/cscript.exe"
     local verifyScriptPath="${WINEPREFIX}/drive_c/windows/temp/verify_winespeak.vbs"
     local actualSha256
+    local verificationAttempt
     local registryOutput
     local voiceOutput
     local defaultToken='HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Speech\Voices\Tokens\Espeak-ng US English'
@@ -87,13 +88,19 @@ install_winespeak() {
         return 1
     fi
 
-    download "$wineSpeakInstaller"
-    actualSha256="$(sha256sum "$installerPath" | awk '{print $1}')"
-    if [[ "$actualSha256" != "$installerSha256" ]]; then
-        echo "WineSpeak installer failed its SHA-256 check."
+    for ((verificationAttempt = 1; verificationAttempt <= 3; verificationAttempt++)); do
+        download "$wineSpeakInstaller"
+        actualSha256="$(sha256sum "$installerPath" | awk '{print $1}')"
+        if [[ "$actualSha256" == "$installerSha256" ]]; then
+            break
+        fi
+        echo "WineSpeak installer failed its SHA-256 check (attempt ${verificationAttempt} of 3)."
         rm -f "$installerPath"
-        return 1
-    fi
+        if ((verificationAttempt == 3)); then
+            return 1
+        fi
+        echo "Downloading WineSpeak again."
+    done
 
     if ! wine "$installerPath" /VERYSILENT /SUPPRESSMSGBOXES /NORESTART /SP-; then
         echo "WineSpeak installer failed."