Add a space between frequencies and their units.

Originally committed as revision 15613 to svn://svn.ffmpeg.org/ffmpeg/trunk

doc/ffmpeg-doc.texi

@@ -111,7 +111,7 @@ to MPEG file a.mpg.
 ffmpeg -i /tmp/a.wav -ar 22050 /tmp/a.mp2
 @end example
 
-Converts a.wav to MPEG audio at 22050Hz sample rate.
+Converts a.wav to MPEG audio at 22050 Hz sample rate.
 
 * You can encode to several formats at the same time and define a
 mapping from input stream to output streams:
@@ -928,7 +928,7 @@ motion estimation completely (you have only I-frames, which means it
 is about as good as JPEG compression).
 
 @item To have very low audio bitrates, reduce the sampling frequency
-(down to 22050Hz for MPEG audio, 22050 or 11025 for AC-3).
+(down to 22050 Hz for MPEG audio, 22050 or 11025 for AC-3).
 
 @item To have a constant quality (but a variable bitrate), use the option
 '-qscale n' when 'n' is between 1 (excellent quality) and 31 (worst

doc/ffserver-doc.texi

@@ -80,7 +80,7 @@ to make it work correctly.
 
 @section What do I need?
 
-I use Linux on a 900MHz Duron with a cheapo Bt848 based TV capture card. I'm
+I use Linux on a 900 MHz Duron with a cheapo Bt848 based TV capture card. I'm
 using stock Linux 2.4.17 with the stock drivers. [Actually that isn't true,
 I needed some special drivers for my motherboard-based sound card.]