[fs.class.path, fs.path.nonmember] Fix inline whitespace (#4092)

Author: JohelEGP

source/iostreams.tex

@@ -11796,7 +11796,7 @@
     friend bool operator==(const path& lhs, const path& rhs) noexcept;
     friend strong_ordering operator<=>(const path& lhs, const path& rhs) noexcept;
 
-    friend path operator/ (const path& lhs, const path& rhs);
+    friend path operator/(const path& lhs, const path& rhs);
 
     // \ref{fs.path.native.obs}, native format observers
     const string_type& native() const noexcept;
@@ -13479,7 +13479,7 @@
 
 \indexlibrarymember{hash_value}{path}%
 \begin{itemdecl}
-size_t hash_value (const path& p) noexcept;
+size_t hash_value(const path& p) noexcept;
 \end{itemdecl}
 
 \begin{itemdescr}
@@ -13534,7 +13534,7 @@
 
 \indexlibrarymember{operator/}{path}%
 \begin{itemdecl}
-friend path operator/ (const path& lhs, const path& rhs);
+friend path operator/(const path& lhs, const path& rhs);
 \end{itemdecl}
 
 \begin{itemdescr}