[filebuf.general] Whitespace improvements, fewer linebreaks

Author: tkoeppe

source/iostreams.tex

@@ -10890,10 +10890,8 @@
     basic_filebuf* open(const char* s, ios_base::openmode mode);
     basic_filebuf* open(const filesystem::path::value_type* s,
                         ios_base::openmode mode);   // wide systems only; see \ref{fstream.syn}
-    basic_filebuf* open(const string& s,
-                        ios_base::openmode mode);
-    basic_filebuf* open(const filesystem::path& s,
-                        ios_base::openmode mode);
+    basic_filebuf* open(const string& s, ios_base::openmode mode);
+    basic_filebuf* open(const filesystem::path& s, ios_base::openmode mode);
     basic_filebuf* close();
     native_handle_type native_handle() const noexcept;
 
@@ -10905,16 +10903,15 @@
     int_type pbackfail(int_type c = traits::eof()) override;
     int_type overflow (int_type c = traits::eof()) override;
 
-    basic_streambuf<charT, traits>* setbuf(char_type* s,
-                                           streamsize n) override;
+    basic_streambuf<charT, traits>* setbuf(char_type* s, streamsize n) override;
+
     pos_type seekoff(off_type off, ios_base::seekdir way,
-                     ios_base::openmode which
-                      = ios_base::in | ios_base::out) override;
+                     ios_base::openmode which = ios_base::in | ios_base::out) override;
     pos_type seekpos(pos_type sp,
-                     ios_base::openmode which
-                      = ios_base::in | ios_base::out) override;
-    int      sync() override;
-    void     imbue(const locale& loc) override;
+                     ios_base::openmode which = ios_base::in | ios_base::out) override;
+
+    int sync() override;
+    void imbue(const locale& loc) override;
   };
 }
 \end{codeblock}