I am wondering if it is possible to insert L-shaped within a text as a bullet-point.

Thanks to everyone!
\documentclass{report}
\usepackage{lipsum,mathabx}
\usepackage{enumerate}
\begin{document}
\begin{enumerate}[$\drsh$]
\item \lipsum[1]
\item \lipsum[2]
\end{enumerate}
\end{document}

See How to look up a symbol or identify a math symbol or character? to locate the symbol and the use enumitem to set this up in an itemize:

\documentclass{article}
\usepackage{enumitem}
\usepackage{mathabx}
\begin{document}
\begin{itemize}[label=\( \drsh \)]
\item An item.
\item Another item.
\end{itemize}
\end{document}
The closes L-shaped arrow of Zapf Dingbats (see psnfss2e) and the use as bullet point in an itemize list:
\documentclass{article}
\usepackage{pifont}
\usepackage{enumitem}
\usepackage{lipsum}
\begin{document}
\begin{itemize}[label=\ding{229}]
\item \lipsum[75]
\item \lipsum[101]
\item \lipsum[103]
\end{itemize}
\end{document}
You can define your own arrow:
\documentclass{article}
\usepackage{tikz}
\usepackage{enumitem}
\usepackage{lipsum}
\newcommand{\myarrow}{\tikz\draw[thick,magenta,-latex] (0,0) -- ++(0,-1.5ex) -- +(2.5ex,0);}
\begin{document}
\begin{itemize}[label=\myarrow]
\item \lipsum[75]
\item \lipsum[101]
\item \lipsum[103]
\end{itemize}
\end{document}

mathabxcontains such a glyph; I'm sure there are others too. – Alan Munn Jun 17 '14 at 18:35mathabxis used, it might also be helpful to look at Importing a Single Symbol From a Different Font. – barbara beeton Jun 17 '14 at 20:22