MacroExpander: Fix variable descriptions

Task-number: QTCREATORBUG-15072
Change-Id: I176f2404509fd6be87dd8db98f5f1f5ef5e34dd6
Reviewed-by: hjk <hjk@theqtcompany.com>
Reviewed-by: Leena Miettinen <riitta-leena.miettinen@theqtcompany.com>

src/plugins/coreplugin/jsexpander.cpp

@@ -87,7 +87,7 @@ JsExpander::JsExpander()
     d = new Internal::JsExpanderPrivate;
     Utils::globalMacroExpander()->registerPrefix("JS",
         QCoreApplication::translate("Core::JsExpander",
-                                    "Evaluate simple Javascript statements.\n"
+                                    "Evaluate simple Javascript statements.<br>"
                                     "The statements may not contain '{' nor '}' characters."),
         [this](QString in) -> QString {
             QString errorMessage;

src/plugins/projectexplorer/jsonwizard/jsonwizard.cpp

@@ -56,7 +56,8 @@ JsonWizard::JsonWizard(QWidget *parent) :
         *ret = stringValue(name);
         return !ret->isNull();
     });
-    m_expander.registerPrefix("Exists", tr("Check whether a variable exists. Returns \"true\" if it does and an empty string if not."),
+    m_expander.registerPrefix("Exists", tr("Check whether a variable exists.<br>"
+                                           "Returns \"true\" if it does and an empty string if not."),
                    [this](const QString &value) -> QString
     {
         const QString key = QString::fromLatin1("%{") + value + QLatin1Char('}');

src/plugins/qtsupport/qtsupportplugin.cpp

@@ -119,8 +119,8 @@ void QtSupportPlugin::extensionsInitialized()
         []() { return qmakeProperty("QT_HOST_BINS"); });
 
     expander->registerVariable(kInstallBins,
-        tr("Full path to the target bin directory of the current project's Qt version."
-           " You probably want %1 instead.").arg(QString::fromLatin1(kHostBins)),
+        tr("Full path to the target bin directory of the current project's Qt version.<br>"
+           "You probably want %1 instead.").arg(QString::fromLatin1(kHostBins)),
         []() { return qmakeProperty("QT_INSTALL_BINS"); });
 }