c++-mode: fix tfm snippet ignored by changing duplicate descriptions (#284)

Signed-off-by: Konstantin Kharlamov <Hi-Angel@yandex.ru>

Author: Hi-Angel

snippets/c++-mode/ltr

@@ -1,5 +1,5 @@
 # -*- mode: snippet -*-
-# name: transform
+# name: remove whitespace at beginning
 # key: ltr
 # --
 ${1:container}.erase(0, $1.find_first_not_of(" \t\n\r"));

snippets/c++-mode/lwr

@@ -1,5 +1,5 @@
 # -*- mode: snippet -*-
-# name: transform
+# name: string to lower case
 # key: lwr
 # --
 std::transform(std::begin(${1:container}), std::end($1), std::begin($1), [](char c) {