minor #29636 [Twig] Remove spaces to fix whitespace in tags (royklutman)

This PR was squashed before being merged into the 4.2 branch (closes #29636).

Discussion
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[Twig] Remove spaces to fix whitespace in tags

| Q             | A
| ------------- | ---
| Branch?       | 4.2
| Bug fix?      | no
| New feature?  | no
| BC breaks?    | no
| Deprecations? | no
| License       | MIT

`form_help` tags in forms have double spaces between its `id` als `class` attributes.

Fixed this by removing unnecessary spaces.

This issue was introduced in `4.2`.

Commits
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82acc89840 [Twig] Remove spaces to fix whitespace in tags

Author: nicolas-grekas

Resources/views/Form/bootstrap_3_layout.html.twig

@@ -178,8 +178,7 @@
 {% block form_help -%}
     {%- if help is not empty -%}
         {%- set help_attr = help_attr|merge({class: (help_attr.class|default('') ~ ' help-block')|trim}) -%}
-
-        <span id="{{ id }}_help" {% for attrname, attrvalue in help_attr %} {{ attrname }}="{{ attrvalue }}"{% endfor %}>
+        <span id="{{ id }}_help"{% with { attr: help_attr } %}{{ block('attributes') }}{% endwith %}>
             {%- if translation_domain is same as(false) -%}
                 {{- help -}}
             {%- else -%}

Resources/views/Form/bootstrap_4_layout.html.twig

@@ -303,8 +303,7 @@
 {% block form_help -%}
     {%- if help is not empty -%}
         {%- set help_attr = help_attr|merge({class: (help_attr.class|default('') ~ ' form-text text-muted')|trim}) -%}
-
-        <small id="{{ id }}_help" {% for attrname, attrvalue in help_attr %} {{ attrname }}="{{ attrvalue }}"{% endfor %}>
+        <small id="{{ id }}_help"{% with { attr: help_attr } %}{{ block('attributes') }}{% endwith %}>
             {%- if translation_domain is same as(false) -%}
                 {{- help -}}
             {%- else -%}

Resources/views/Form/form_div_layout.html.twig

@@ -292,8 +292,7 @@
 {% block form_help -%}
     {%- if help is not empty -%}
         {%- set help_attr = help_attr|merge({class: (help_attr.class|default('') ~ ' help-text')|trim}) -%}
-
-        <p id="{{ id }}_help" {% for attrname, attrvalue in help_attr %} {{ attrname }}="{{ attrvalue }}"{% endfor %}>
+        <p id="{{ id }}_help"{% with { attr: help_attr } %}{{ block('attributes') }}{% endwith %}>
             {%- if translation_domain is same as(false) -%}
                 {{- help -}}
             {%- else -%}