docs($filter): Date filter am/pm case

Use uppercase for AM/PM in date filter

fixes #8763

src/ng/filter/filters.js

@@ -326,14 +326,14 @@ var DATE_FORMATS_SPLIT = /((?:[^yMdHhmsaZEw']+)|(?:'(?:[^']|'')*')|(?:E+|y+|M+|d
  *   * `'EEE'`: Day in Week, (Sun-Sat)
  *   * `'HH'`: Hour in day, padded (00-23)
  *   * `'H'`: Hour in day (0-23)
- *   * `'hh'`: Hour in am/pm, padded (01-12)
- *   * `'h'`: Hour in am/pm, (1-12)
+ *   * `'hh'`: Hour in AM/PM, padded (01-12)
+ *   * `'h'`: Hour in AM/PM, (1-12)
  *   * `'mm'`: Minute in hour, padded (00-59)
  *   * `'m'`: Minute in hour (0-59)
  *   * `'ss'`: Second in minute, padded (00-59)
  *   * `'s'`: Second in minute (0-59)
  *   * `'.sss' or ',sss'`: Millisecond in second, padded (000-999)
- *   * `'a'`: am/pm marker
+ *   * `'a'`: AM/PM marker
  *   * `'Z'`: 4 digit (+sign) representation of the timezone offset (-1200-+1200)
  *   * `'ww'`: ISO-8601 week of year (00-53)
  *   * `'w'`: ISO-8601 week of year (0-53)
@@ -342,15 +342,15 @@ var DATE_FORMATS_SPLIT = /((?:[^yMdHhmsaZEw']+)|(?:'(?:[^']|'')*')|(?:E+|y+|M+|d
  *   {@link guide/i18n localizable formats}:
  *
  *   * `'medium'`: equivalent to `'MMM d, y h:mm:ss a'` for en_US locale
- *     (e.g. Sep 3, 2010 12:05:08 pm)
- *   * `'short'`: equivalent to `'M/d/yy h:mm a'` for en_US  locale (e.g. 9/3/10 12:05 pm)
+ *     (e.g. Sep 3, 2010 12:05:08 PM)
+ *   * `'short'`: equivalent to `'M/d/yy h:mm a'` for en_US  locale (e.g. 9/3/10 12:05 PM)
  *   * `'fullDate'`: equivalent to `'EEEE, MMMM d, y'` for en_US  locale
  *     (e.g. Friday, September 3, 2010)
  *   * `'longDate'`: equivalent to `'MMMM d, y'` for en_US  locale (e.g. September 3, 2010)
  *   * `'mediumDate'`: equivalent to `'MMM d, y'` for en_US  locale (e.g. Sep 3, 2010)
  *   * `'shortDate'`: equivalent to `'M/d/yy'` for en_US locale (e.g. 9/3/10)
- *   * `'mediumTime'`: equivalent to `'h:mm:ss a'` for en_US locale (e.g. 12:05:08 pm)
- *   * `'shortTime'`: equivalent to `'h:mm a'` for en_US locale (e.g. 12:05 pm)
+ *   * `'mediumTime'`: equivalent to `'h:mm:ss a'` for en_US locale (e.g. 12:05:08 PM)
+ *   * `'shortTime'`: equivalent to `'h:mm a'` for en_US locale (e.g. 12:05 PM)
  *
  *   `format` string can contain literal values. These need to be escaped by surrounding with single quotes (e.g.
  *   `"h 'in the morning'"`). In order to output a single quote, escape it - i.e., two single quotes in a sequence