As option --host and --guest request no input for it, there should
not be a '=' after them in Document. And --output request a filename
as the input, so there should be a '=' after it. This patch remove
the wrong '=' after --guest and --host, and add a '=' after --output
in perf-kvm.txt.

Signed-off-by: Dongsheng Yang <[email protected]>
---
 tools/perf/Documentation/perf-kvm.txt | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/tools/perf/Documentation/perf-kvm.txt 
b/tools/perf/Documentation/perf-kvm.txt
index be1d263..96a9a1d 100644
--- a/tools/perf/Documentation/perf-kvm.txt
+++ b/tools/perf/Documentation/perf-kvm.txt
@@ -67,14 +67,14 @@ There are a couple of variants of perf kvm:
 OPTIONS
 -------
 -i::
---input=::
+--input=<path>::
         Input file name.
 -o::
---output::
+--output=<path>::
         Output file name.
---host=::
+--host::
         Collect host side performance profile.
---guest=::
+--guest::
         Collect guest side performance profile.
 --guestmount=<path>::
        Guest os root file system mount directory. Users mounts guest os
-- 
1.8.2.1

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